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)

2023-03-31T00:12:04.585Z||main|||||INFO|500||The following profiles are active: basic
2023-03-31T00:12:15.130Z||main|||||INFO|500||Starting service [Tomcat]
2023-03-31T00:12:15.131Z||main|||||INFO|500||Starting Servlet engine: [Apache Tomcat/9.0.41]
2023-03-31T00:12:15.298Z||main|||||INFO|500||Initializing Spring embedded WebApplicationContext
2023-03-31T00:12:15.730Z||main|||||INFO|500||catdb-pool - Starting...
2023-03-31T00:12:15.971Z||main|||||INFO|500||catdb-pool - Start completed.
2023-03-31T00:12:16.590Z||main|||||INFO|500||HHH000204: Processing PersistenceUnitInfo [name: catalogDB]
2023-03-31T00:12:16.938Z||main|||||INFO|500||HHH000412: Hibernate ORM core version 5.4.25.Final
2023-03-31T00:12:17.969Z||main|||||INFO|500||HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
2023-03-31T00:12:21.068Z||main|||||INFO|500||HHH000400: Using dialect: org.hibernate.dialect.MariaDB103Dialect
2023-03-31T00:12:21.861Z||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.
2023-03-31T00:12:23.944Z||main|||||INFO|500||HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2023-03-31T00:12:29.685Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:29.691Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:29.692Z||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]
2023-03-31T00:12:29.694Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:29.695Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:29.703Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:29.741Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:29.741Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:29.742Z||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]
2023-03-31T00:12:29.742Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:29.742Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:29.744Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:29.749Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:29.749Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:29.750Z||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]
2023-03-31T00:12:29.750Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:29.750Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:29.752Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:29.757Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:29.757Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:29.757Z||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]
2023-03-31T00:12:29.758Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:29.758Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:29.760Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:29.770Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:29.801Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:29.802Z||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]
2023-03-31T00:12:29.802Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:29.802Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:29.804Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:29.809Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:29.810Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:29.810Z||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]
2023-03-31T00:12:29.810Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:29.811Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:29.812Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:29.817Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:29.818Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:29.818Z||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]
2023-03-31T00:12:29.818Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:29.819Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:29.821Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:29.825Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:29.828Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:29.829Z||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]
2023-03-31T00:12:29.829Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:29.829Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:29.831Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:29.835Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:29.836Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:29.836Z||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]
2023-03-31T00:12:29.836Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:29.836Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:29.838Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:29.842Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:29.843Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:29.843Z||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]
2023-03-31T00:12:29.843Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:29.844Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:29.845Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:29.854Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:29.855Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:29.855Z||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]
2023-03-31T00:12:29.856Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:29.856Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:29.858Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:29.908Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:29.908Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:29.909Z||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]
2023-03-31T00:12:29.910Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:29.910Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:29.912Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:29.917Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:29.918Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:29.918Z||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]
2023-03-31T00:12:29.918Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:29.919Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:29.920Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:29.925Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:29.926Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:29.926Z||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]
2023-03-31T00:12:29.927Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:29.927Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:29.943Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:29.952Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:29.953Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:29.953Z||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]
2023-03-31T00:12:29.954Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:29.954Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:29.959Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.008Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.009Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.010Z||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]
2023-03-31T00:12:30.010Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.011Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.015Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.023Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.023Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.023Z||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]
2023-03-31T00:12:30.023Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.024Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.027Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.036Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.036Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.036Z||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]
2023-03-31T00:12:30.036Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.037Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.039Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.044Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.167Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.201Z||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]
2023-03-31T00:12:30.204Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.204Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.213Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.229Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.229Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.230Z||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]
2023-03-31T00:12:30.230Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.230Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.234Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.307Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.308Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.308Z||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]
2023-03-31T00:12:30.308Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.309Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.321Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.338Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.339Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.339Z||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]
2023-03-31T00:12:30.339Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.340Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.343Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.352Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.353Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.353Z||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]
2023-03-31T00:12:30.354Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.354Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.406Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.415Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.416Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.417Z||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]
2023-03-31T00:12:30.417Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.418Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.421Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.429Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.430Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.430Z||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]
2023-03-31T00:12:30.431Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.431Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.434Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.446Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.447Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.501Z||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]
2023-03-31T00:12:30.502Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.502Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.504Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.511Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.512Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.512Z||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]
2023-03-31T00:12:30.513Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.513Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.516Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.542Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.543Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.543Z||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]
2023-03-31T00:12:30.544Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.544Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.548Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.555Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.556Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.556Z||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]
2023-03-31T00:12:30.556Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.556Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.558Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.567Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.568Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.569Z||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]
2023-03-31T00:12:30.569Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.569Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.573Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.606Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.606Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.607Z||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]
2023-03-31T00:12:30.607Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.607Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.609Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.616Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.616Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.617Z||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]
2023-03-31T00:12:30.617Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.617Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.620Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.627Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.628Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.628Z||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]
2023-03-31T00:12:30.628Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.629Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.631Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.638Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.638Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.638Z||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]
2023-03-31T00:12:30.639Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.639Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.642Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.647Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.648Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.648Z||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]
2023-03-31T00:12:30.648Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.649Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.651Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.656Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.657Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.657Z||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]
2023-03-31T00:12:30.657Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.658Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.660Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.709Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.710Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.710Z||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]
2023-03-31T00:12:30.710Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.711Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.713Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.720Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.721Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.721Z||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]
2023-03-31T00:12:30.722Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.722Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.725Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.730Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.730Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.731Z||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]
2023-03-31T00:12:30.731Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.731Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.733Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.738Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.738Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.738Z||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]
2023-03-31T00:12:30.738Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.739Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.741Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.745Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.746Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.746Z||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]
2023-03-31T00:12:30.746Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.746Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.748Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.754Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.754Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.754Z||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]
2023-03-31T00:12:30.754Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.755Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.757Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.761Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.762Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.762Z||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]
2023-03-31T00:12:30.762Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.762Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.763Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.767Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.767Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.801Z||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]
2023-03-31T00:12:30.801Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.801Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.803Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.807Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.808Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.808Z||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]
2023-03-31T00:12:30.808Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.808Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.810Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.814Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.814Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.814Z||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]
2023-03-31T00:12:30.814Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.815Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.816Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.820Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.820Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.821Z||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]
2023-03-31T00:12:30.821Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.821Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.822Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.826Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.826Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.826Z||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]
2023-03-31T00:12:30.827Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.827Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.828Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.833Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.833Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.833Z||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]
2023-03-31T00:12:30.833Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.833Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.835Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.838Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormatProvider[name = application/json]
2023-03-31T00:12:30.838Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.json.JacksonJsonDataFormat[name = application/json]
2023-03-31T00:12:30.839Z||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]
2023-03-31T00:12:30.839Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.serializable.SerializableDataFormat[name = application/x-java-serialized-object]
2023-03-31T00:12:30.839Z||main|||||INFO|500||TASK/CLIENT-01026 Discovered data format provider: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormatProvider[name = application/xml]
2023-03-31T00:12:30.841Z||main|||||INFO|500||TASK/CLIENT-01025 Discovered data format: org.camunda.bpm.client.variable.impl.format.xml.DomXmlDataFormat[name = application/xml]
2023-03-31T00:12:30.932Z||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
2023-03-31T00:12:30.934Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.934Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.934Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.008Z||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
2023-03-31T00:12:31.007Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.006Z||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
2023-03-31T00:12:31.006Z||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
2023-03-31T00:12:30.934Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.933Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.933Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.933Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.004Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.933Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.933Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.004Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.933Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.933Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.004Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.003Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.003Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.003Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.933Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.932Z||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
2023-03-31T00:12:31.003Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.002Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.001Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.933Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.932Z||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
2023-03-31T00:12:30.974Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.945Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.945Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.943Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.943Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.942Z||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
2023-03-31T00:12:30.942Z||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
2023-03-31T00:12:30.942Z||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
2023-03-31T00:12:30.942Z||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
2023-03-31T00:12:30.941Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.940Z||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
2023-03-31T00:12:30.941Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.940Z||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
2023-03-31T00:12:30.939Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.940Z||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
2023-03-31T00:12:30.939Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.932Z||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
2023-03-31T00:12:30.939Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.939Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.938Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:30.936Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.280Z||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
2023-03-31T00:12:31.645Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.650Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.651Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.665Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.664Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.667Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.667Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.668Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.668Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.668Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.668Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.669Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.669Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.670Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.670Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.671Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.671Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.671Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.673Z||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
2023-03-31T00:12:31.674Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.674Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.674Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.677Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.678Z||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
2023-03-31T00:12:31.679Z||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
2023-03-31T00:12:31.679Z||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
2023-03-31T00:12:31.680Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.680Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.680Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.681Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.681Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.682Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.682Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.683Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.685Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.685Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.686Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.686Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.693Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.694Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.701Z||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
2023-03-31T00:12:31.701Z||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
2023-03-31T00:12:31.702Z||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
2023-03-31T00:12:31.702Z||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
2023-03-31T00:12:31.702Z||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
2023-03-31T00:12:31.706Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.712Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.715Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.720Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:31.730Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.790Z||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
2023-03-31T00:12:32.798Z||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
2023-03-31T00:12:32.798Z||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
2023-03-31T00:12:32.801Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.801Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.801Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.803Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.809Z||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
2023-03-31T00:12:32.809Z||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
2023-03-31T00:12:32.812Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.817Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.817Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.823Z||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
2023-03-31T00:12:32.823Z||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
2023-03-31T00:12:32.823Z||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
2023-03-31T00:12:32.823Z||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
2023-03-31T00:12:32.826Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.831Z||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
2023-03-31T00:12:32.833Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.833Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.834Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.836Z||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
2023-03-31T00:12:32.844Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.849Z||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
2023-03-31T00:12:32.849Z||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
2023-03-31T00:12:32.849Z||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
2023-03-31T00:12:32.855Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.856Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.866Z||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
2023-03-31T00:12:32.878Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.880Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.881Z||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
2023-03-31T00:12:32.882Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.884Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.901Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.885Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.901Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.902Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.901Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.902Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.903Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.903Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.904Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.905Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.905Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.905Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.905Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.906Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.903Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:32.907Z||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
2023-03-31T00:12:33.930Z||main|||||WARN|500||---
2023-03-31T00:12:33.930Z||main|||||WARN|500||Spring Data REST HAL Browser is deprecated! Prefer the HAL Explorer (artifactId: spring-data-rest-hal-explorer)!
2023-03-31T00:12:33.930Z||main|||||WARN|500||---
2023-03-31T00:12:34.458Z||main|||||INFO|500||Setting the server's publish address to be /api
2023-03-31T00:12:34.823Z||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
2023-03-31T00:12:34.859Z||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
2023-03-31T00:12:34.893Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:34.901Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:34.903Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:34.936Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:34.956Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:34.961Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:34.970Z||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
2023-03-31T00:12:34.972Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:34.999Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.001Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.001Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:34.995Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.002Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.005Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.005Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.010Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.020Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.020Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.021Z||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
2023-03-31T00:12:35.023Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.024Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.024Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.025Z||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
2023-03-31T00:12:35.024Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.027Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.028Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.029Z||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
2023-03-31T00:12:35.030Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.033Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.043Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.044Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.045Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.045Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.046Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.046Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.048Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.049Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.050Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.050Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.051Z||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
2023-03-31T00:12:35.051Z||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
2023-03-31T00:12:35.053Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.054Z||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
2023-03-31T00:12:35.058Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.058Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.072Z||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
2023-03-31T00:12:35.101Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.101Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:35.379Z||main|||||DEBUG|500||Injecting class org.onap.so.security.SoBasicHttpSecurityConfigurer configuration ...
2023-03-31T00:12:38.894Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:38.913Z||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
2023-03-31T00:12:38.925Z||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
2023-03-31T00:12:38.950Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.001Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.016Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.043Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.078Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.141Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.144Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.150Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.152Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.163Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.164Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.165Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.169Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.178Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.178Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.179Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.179Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.179Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.179Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.185Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.185Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.186Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.186Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.187Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.187Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.189Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.192Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.192Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.192Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.199Z||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
2023-03-31T00:12:39.201Z||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
2023-03-31T00:12:39.199Z||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
2023-03-31T00:12:39.201Z||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
2023-03-31T00:12:39.201Z||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
2023-03-31T00:12:39.201Z||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
2023-03-31T00:12:39.201Z||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
2023-03-31T00:12:39.202Z||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
2023-03-31T00:12:39.202Z||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
2023-03-31T00:12:39.202Z||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
2023-03-31T00:12:39.202Z||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
2023-03-31T00:12:39.203Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.203Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.204Z||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
2023-03-31T00:12:39.206Z||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
2023-03-31T00:12:39.207Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.216Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.218Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:39.971Z||main|||||INFO|500||Started MsoOpenstackAdaptersApplication in 41.175 seconds (JVM running for 44.807)
2023-03-31T00:12:46.947Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:46.951Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:46.977Z||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
2023-03-31T00:12:47.001Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.022Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.073Z||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
2023-03-31T00:12:47.097Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.126Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.265Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.266Z||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
2023-03-31T00:12:47.294Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.294Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.316Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.316Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.318Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.320Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.320Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.321Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.323Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.322Z||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
2023-03-31T00:12:47.324Z||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
2023-03-31T00:12:47.325Z||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
2023-03-31T00:12:47.329Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.331Z||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
2023-03-31T00:12:47.333Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.334Z||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
2023-03-31T00:12:47.342Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.347Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.349Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.349Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.349Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.349Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.349Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.350Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.351Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.352Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.355Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.356Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.357Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.357Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.356Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.358Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.359Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.368Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.369Z||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
2023-03-31T00:12:47.376Z||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
2023-03-31T00:12:47.383Z||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
2023-03-31T00:12:47.384Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:12:47.389Z||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
2023-03-31T00:12:47.390Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:02.991Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.005Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.021Z||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
2023-03-31T00:13:03.065Z||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
2023-03-31T00:13:03.072Z||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
2023-03-31T00:13:03.134Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.165Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.190Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.462Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.468Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.525Z||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
2023-03-31T00:13:03.540Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.543Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.545Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.549Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.549Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.549Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.556Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.559Z||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
2023-03-31T00:13:03.561Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.562Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.562Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.562Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.563Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.563Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.563Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.564Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.565Z||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
2023-03-31T00:13:03.565Z||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
2023-03-31T00:13:03.565Z||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
2023-03-31T00:13:03.570Z||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
2023-03-31T00:13:03.569Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.571Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.572Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.573Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.574Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.574Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.575Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.577Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.580Z||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
2023-03-31T00:13:03.582Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.578Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.561Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.579Z||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
2023-03-31T00:13:03.579Z||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
2023-03-31T00:13:03.595Z||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
2023-03-31T00:13:03.598Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.598Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.599Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:03.600Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.052Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.074Z||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
2023-03-31T00:13:35.086Z||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: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.120Z||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
2023-03-31T00:13:35.148Z||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
2023-03-31T00:13:35.195Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.230Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.254Z||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
2023-03-31T00:13:35.545Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.554Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.663Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.665Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.665Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.667Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.675Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.676Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.682Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.682Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.682Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.681Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.682Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.686Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.686Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.690Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.691Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.694Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.707Z||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
2023-03-31T00:13:35.712Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.714Z||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
2023-03-31T00:13:35.719Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.731Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.740Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.741Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.741Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.741Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.741Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.742Z||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
2023-03-31T00:13:35.742Z||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
2023-03-31T00:13:35.742Z||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
2023-03-31T00:13:35.742Z||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
2023-03-31T00:13:35.742Z||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
2023-03-31T00:13:35.742Z||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
2023-03-31T00:13:35.744Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.744Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.745Z||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
2023-03-31T00:13:35.744Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.745Z||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
2023-03-31T00:13:35.749Z||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
2023-03-31T00:13:35.752Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:13:35.761Z||TopicSubscriptionManager|||||ERROR|500||TASK/CLIENT-03001 Exception while fetch and lock task.
org.camunda.bpm.client.impl.EngineClientException: TASK/CLIENT-02001 Request 'POST http://so-bpmn-infra.onap:8081/sobpmnengine/external-task/fetchAndLock HTTP/1.1' returned error: status code '503' - message: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.EngineClientLogger.exceptionWhileReceivingResponse(EngineClientLogger.java:30)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:97)
	at org.camunda.bpm.client.impl.RequestExecutor.postRequest(RequestExecutor.java:74)
	at org.camunda.bpm.client.impl.EngineClient.fetchAndLock(EngineClient.java:78)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.fetchAndLock(TopicSubscriptionManager.java:135)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.acquire(TopicSubscriptionManager.java:101)
	at org.camunda.bpm.client.topic.impl.TopicSubscriptionManager.run(TopicSubscriptionManager.java:87)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.apache.http.client.HttpResponseException: status code: 503, reason phrase: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111
	at org.camunda.bpm.client.impl.RequestExecutor$1.handleResponse(RequestExecutor.java:146)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:223)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:165)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:140)
	at org.camunda.bpm.client.impl.RequestExecutor.executeRequest(RequestExecutor.java:88)
	... 6 common frames omitted
2023-03-31T00:22:07.626Z||http-nio-8087-exec-1|||||INFO|500||Initializing Spring DispatcherServlet 'dispatcherServlet'