JVM Arguments:  -Dspring.profiles.active=basic -Djava.security.egd=file:/dev/./urandom -Dlogs_dir=./logs/openstack/ -Dlogging.config=/app/logback-spring.xml  -Dspring.config.additional-location=/app/config/override.yaml  -Djsse.enableSNIExtension=false

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.3.7.RELEASE)

2023-03-08T23:23:34.961Z||main|||||INFO|500||The following profiles are active: basic
2023-03-08T23:23:48.400Z||main|||||INFO|500||Starting service [Tomcat]
2023-03-08T23:23:48.401Z||main|||||INFO|500||Starting Servlet engine: [Apache Tomcat/9.0.41]
2023-03-08T23:23:48.566Z||main|||||INFO|500||Initializing Spring embedded WebApplicationContext
2023-03-08T23:23:49.045Z||main|||||INFO|500||catdb-pool - Starting...
2023-03-08T23:23:49.285Z||main|||||INFO|500||catdb-pool - Start completed.
2023-03-08T23:23:49.921Z||main|||||INFO|500||HHH000204: Processing PersistenceUnitInfo [name: catalogDB]
2023-03-08T23:23:50.172Z||main|||||INFO|500||HHH000412: Hibernate ORM core version 5.4.25.Final
2023-03-08T23:23:50.985Z||main|||||INFO|500||HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
2023-03-08T23:23:53.092Z||main|||||INFO|500||HHH000400: Using dialect: org.hibernate.dialect.MariaDB103Dialect
2023-03-08T23:23:53.981Z||main|||||WARN|500||HHH000491: The [heatTemplates] association in the [org.onap.so.db.catalog.beans.VnfResource] entity uses both @NotFound(action = NotFoundAction.IGNORE) and FetchType.LAZY. The NotFoundAction.IGNORE @ManyToOne and @OneToOne associations are always fetched eagerly.
2023-03-08T23:23:56.941Z||main|||||INFO|500||HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2023-03-08T23:24:04.337Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.345Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.346Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.348Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.350Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.355Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.403Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.404Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.404Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.405Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.405Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.407Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.412Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.412Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.413Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.413Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.413Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.415Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.424Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.424Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.425Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.425Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.426Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.428Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.434Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.434Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.435Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.436Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.436Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.439Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.471Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.471Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.472Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.472Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.473Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.475Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.481Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.481Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.482Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.482Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.483Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.486Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.494Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.495Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.496Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.496Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.497Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.500Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.507Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.508Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.508Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.509Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.509Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.512Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.517Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.518Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.518Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.519Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.565Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.568Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.574Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.575Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.575Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.576Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.576Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.579Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.586Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.587Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.588Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.589Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.589Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.591Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.596Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.596Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.597Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.597Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.598Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.599Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.604Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.605Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.605Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.605Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.606Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.607Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.614Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.615Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.615Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.616Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.616Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.666Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.679Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.680Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.683Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.684Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.685Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.687Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.692Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.692Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.693Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.693Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.693Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.695Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.699Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.700Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.700Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.700Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.701Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.704Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.710Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.765Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.766Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.767Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.767Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.768Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.774Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.774Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.775Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.775Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.775Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.777Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.785Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.786Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.786Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.786Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.787Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.789Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.801Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.802Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.802Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.802Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.802Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.865Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.873Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.874Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.874Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.874Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.875Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.878Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.886Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.886Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.887Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.887Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.887Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.890Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.896Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.896Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.897Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.897Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.898Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.900Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.905Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.906Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.906Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.906Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.906Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.908Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.968Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.969Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.969Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.970Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.970Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.972Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.978Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.979Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.979Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.979Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.979Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.981Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:04.988Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:04.989Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:04.989Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:04.989Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:04.990Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:04.991Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.079Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.080Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.081Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.081Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.082Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.084Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.098Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.098Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.099Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.099Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.104Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.107Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.116Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.116Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.116Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.116Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.117Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.118Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.169Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.169Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.170Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.170Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.171Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.174Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.183Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.184Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.185Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.185Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.185Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.189Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.196Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.197Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.197Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.197Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.198Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.200Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.204Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.205Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.205Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.205Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.206Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.208Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.267Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.268Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.269Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.269Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.269Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.271Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.284Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.285Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.285Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.285Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.285Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.288Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.299Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.299Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.300Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.300Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.300Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.301Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.300Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.374Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.303Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.300Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.375Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.300Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.300Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.300Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.364Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.365Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.364Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.369Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.369Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.375Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.375Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.375Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.369Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.369Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.302Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.368Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.368Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.376Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.376Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.368Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.300Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.369Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.368Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.368Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.368Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.377Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.300Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.300Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.368Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.300Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.368Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.378Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.368Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.367Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.367Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.365Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.300Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.366Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.365Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.383Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.383Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.391Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.390Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.393Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.393Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.393Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.394Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.396Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.405Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.406Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.406Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.406Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.407Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.407Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.409Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.466Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.467Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.467Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.467Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.468Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.468Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.471Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.482Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.483Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.483Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.484Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.484Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.488Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.488Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.496Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.496Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.497Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.497Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.497Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.497Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.499Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.505Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.505Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.506Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.506Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.506Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.508Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.510Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.515Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.515Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.516Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.516Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.516Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.517Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.520Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.566Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.567Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.566Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.567Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.567Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.567Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.569Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.575Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.576Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.576Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.576Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.576Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.578Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.578Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.582Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-08T23:24:05.582Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-08T23:24:05.582Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormatProvider[name = application/x-java-serialized-object]
2023-03-08T23:24:05.583Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-08T23:24:05.583Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-08T23:24:05.584Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-08T23:24:05.585Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.596Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.888Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.888Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.889Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.889Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.889Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.889Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.889Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.890Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.890Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.894Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.890Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.889Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.890Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.895Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.890Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.890Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.895Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.890Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.897Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.897Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.897Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.898Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.897Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.891Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.898Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.891Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.891Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.899Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.891Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.893Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.897Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.891Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.901Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.901Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.902Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.902Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.901Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.901Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.903Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.903Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.912Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.975Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:05.993Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.000Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.014Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.021Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.071Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.082Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.089Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.102Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.124Z||main|||||WARN|500||spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2023-03-08T23:24:06.892Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.892Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.896Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.897Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.898Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.899Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.905Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.908Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.910Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.912Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.913Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.913Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.914Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.913Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.921Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.922Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.922Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.923Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.923Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.925Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.913Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.916Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.916Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.915Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.915Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.966Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.915Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.915Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.915Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.914Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.966Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.914Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.914Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.967Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.967Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.968Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.966Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.921Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.969Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.966Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.914Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.978Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:06.996Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:07.003Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:07.017Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:07.024Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:07.074Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:07.086Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:07.092Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:07.105Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.897Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.935Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.937Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.937Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.938Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.937Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.939Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.939Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.941Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.941Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.942Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.943Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.944Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.945Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.945Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.945Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.946Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.946Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.947Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.944Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.969Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.970Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.970Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.970Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.970Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.971Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.972Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.972Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.972Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.974Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.974Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.974Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.975Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.975Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.975Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.976Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.976Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.977Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.977Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.977Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.978Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:08.981Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:09.000Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:09.006Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:09.026Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:09.027Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:09.078Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:09.095Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:09.095Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:09.108Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:10.184Z||main|||||WARN|500||---
2023-03-08T23:24:10.185Z||main|||||WARN|500||Spring Data REST HAL Browser is deprecated! Prefer the HAL Explorer (artifactId: spring-data-rest-hal-explorer)!
2023-03-08T23:24:10.185Z||main|||||WARN|500||---
2023-03-08T23:24:10.705Z||main|||||INFO|500||Setting the server's publish address to be /api
2023-03-08T23:24:11.535Z||main|||||DEBUG|500||Injecting class org.onap.so.security.SoBasicHttpSecurityConfigurer configuration ...
2023-03-08T23:24:12.901Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.938Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.939Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.942Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.942Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.942Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.943Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.943Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.944Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.944Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.945Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.946Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.969Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.969Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.970Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.970Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.970Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.970Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.974Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.975Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.976Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.976Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.981Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.982Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.982Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.983Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.983Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.982Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.983Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.985Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.985Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.985Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.985Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.985Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.986Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.986Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.987Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.987Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.989Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.989Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.991Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:12.991Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:13.003Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:13.009Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:13.065Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:13.068Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:13.082Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:13.100Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:13.100Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:13.112Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: no healthy upstream
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:17.443Z||main|||||INFO|500||Started MsoOpenstackAdaptersApplication in 48.745 seconds (JVM running for 51.001)
2023-03-08T23:24:21.638Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.638Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.638Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.649Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.649Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.679Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.701Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.707Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.709Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.709Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.745Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.746Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.747Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.747Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.746Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.749Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.749Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.758Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.758Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.758Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.757Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.758Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.758Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.758Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.759Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.770Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.771Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.775Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.776Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.777Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.777Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.777Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.778Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.778Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.778Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.778Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.778Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.779Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.779Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.779Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.780Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.780Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.783Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.787Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.788Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.796Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.796Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.809Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.809Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:21.831Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:37.713Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:37.727Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:37.736Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:37.738Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:37.831Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:37.857Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:37.866Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:37.866Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:37.892Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.055Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.194Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.199Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.217Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.227Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.252Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.252Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.262Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.263Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.297Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.297Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.297Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.297Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.298Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.301Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.301Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.301Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.302Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.302Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.304Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.330Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.330Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.331Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.331Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.332Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.375Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.375Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.377Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.377Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.377Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.377Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.378Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.386Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.388Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.388Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.388Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.389Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.389Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.408Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.433Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:24:38.434Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:09.788Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:09.822Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:09.829Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:09.835Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:09.913Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:09.985Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:10.021Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:10.032Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:10.036Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:10.173Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:10.260Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:10.266Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:10.324Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:10.385Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:10.446Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:10.907Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.201Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.201Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.290Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.327Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.346Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.346Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.383Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.383Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.383Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.393Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.394Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.410Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.410Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.422Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.422Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.445Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.446Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.447Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.447Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.476Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.558Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.558Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.559Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.558Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.559Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.559Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.565Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.568Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.586Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.586Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.919Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.919Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.970Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:25:11.971Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:09.872Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:09.925Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:09.937Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:09.952Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:09.988Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:10.082Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:10.104Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:10.120Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:10.148Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:10.263Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:10.370Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:10.371Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:10.455Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:10.475Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:10.538Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:10.997Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.394Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.522Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.708Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.728Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.773Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.827Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.827Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.866Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.866Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.875Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.883Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.912Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.913Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.913Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.913Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.915Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.915Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.926Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.930Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.930Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.931Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.932Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.932Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.940Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.940Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.940Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.949Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.977Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.981Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:11.987Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:12.026Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:12.026Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:12.077Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:26:12.077Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:09.959Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:10.006Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:10.073Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:10.075Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:10.116Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:10.262Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:10.262Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:10.275Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:10.299Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:10.334Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:10.426Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:10.470Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:10.570Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:10.580Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:10.678Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:11.099Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:11.506Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:11.622Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:11.808Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:11.823Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:11.866Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:11.909Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:11.968Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.051Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.054Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.139Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.171Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.171Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.206Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.206Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.206Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.212Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.213Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.237Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.238Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.254Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.255Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.275Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.276Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.276Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.315Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.315Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.315Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.370Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.370Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.371Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.371Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.371Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.371Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:27:12.377Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:10.014Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:10.041Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:10.155Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:10.167Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:10.229Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:10.376Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:10.397Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:10.402Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:10.434Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:10.453Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:10.476Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:10.605Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:10.678Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:10.714Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:10.799Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:11.202Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:11.618Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:11.702Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:11.851Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:11.899Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:11.940Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.012Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.072Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.111Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.128Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.299Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.362Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.362Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.369Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.398Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.398Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.432Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.437Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.467Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.467Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.477Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.477Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.521Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.521Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.521Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.524Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.525Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.529Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.533Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.542Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.542Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.542Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.566Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.566Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:28:12.591Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:10.129Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:10.171Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:10.322Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:10.322Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:10.325Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:10.497Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:10.514Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:10.541Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:10.542Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:10.595Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:10.613Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:10.643Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:10.716Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:10.864Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:10.897Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:11.304Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:11.717Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:11.798Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:11.983Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.012Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.060Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.124Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.204Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.211Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.237Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.376Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.444Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.480Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.579Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.579Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.657Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.657Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.699Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.770Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.780Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.790Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.805Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.827Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.828Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.830Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.832Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.848Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.848Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.849Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.859Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.859Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.859Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.859Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.873Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:29:12.873Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:10.188Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:10.242Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:10.424Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:10.471Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:10.475Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:10.606Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:10.612Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:10.615Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:10.616Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:10.628Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:10.695Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:10.695Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:10.781Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:10.910Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:10.978Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:11.413Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:11.836Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:11.881Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.092Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.112Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.214Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.298Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.360Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.400Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.426Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.514Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.610Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.613Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.673Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.705Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.742Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.753Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.774Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.919Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.942Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:12.990Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:13.008Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:13.009Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:13.013Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:13.014Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:13.014Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:13.025Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:13.029Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:13.042Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:13.042Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:13.065Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:13.066Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:13.066Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:13.074Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:30:13.075Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-08T23:34:00.373Z||http-nio-8087-exec-1|||||INFO|500||Initializing Spring DispatcherServlet 'dispatcherServlet'