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          2021-06-11 22:56:39,019|None|140355796646688|INFO|service|conductor.reservation.service:  [-] plan id: healthcheck [-] Reservation starts, changing the template status from solved to reserving, atomic update response from MUSIC SUCCESS
2021-06-11 22:56:39,020|None|140355796646688|INFO|service|conductor.reservation.service:  [-] plan id: healthcheck [-] Plan healthcheck with request id foo is reserving by machine dev-oof-has-reservation-6b565b6d7c-4d5j9. Tried to reserve it for 1 times.
2021-06-11 22:56:39,021|None|140355796646688|ERROR|service|conductor.reservation.service:  [-] plan id: healthcheck [-] no conductor_solver in translation for Plan healthcheck
2021-06-11 22:56:39,021|None|140355796646688|INFO|service|conductor.reservation.service:  [-] plan id: healthcheck [-] Plan healthcheck with request id foo Reservation complete
2021-06-11 22:56:39,266|None|140355796646688|INFO|service|conductor.reservation.service:  [-] plan id: healthcheck [-] Reservation is complete, changing the template status from reserving to done, atomic update response from MUSIC SUCCESS
2021-06-11 23:01:36,324|None|140355796646688|ERROR|_utils|cotyledon._utils:  [-] plan id: healthcheck [-] Unhandled exception
Traceback (most recent call last):
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 60, in get_client
    return etcd3.client(host=self.host, port=self.port,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 1178, in client
    return Etcd3Client(host=host,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 148, in __init__
    resp = self.auth_stub.Authenticate(auth_request, self.timeout)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 946, in __call__
    return _end_unary_response_blocking(state, call, False, None)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 849, in _end_unary_response_blocking
    raise _InactiveRpcError(state)
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
	status = StatusCode.UNAVAILABLE
	details = "etcdserver: request timed out"
	debug_error_string = "{"created":"@1623452496.322987552","description":"Error received from peer ipv4:10.242.96.165:2379","file":"src/core/lib/surface/call.cc","file_line":1067,"grpc_message":"etcdserver: request timed out","grpc_status":14}"
>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_utils.py", line 95, in exit_on_exception
    yield
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 139, in _run
    self.run()
  File "/opt/has/conductor/conductor/reservation/service.py", line 264, in run
    solved_plans = self.Plan.query.get_plan_by_col("status", self.Plan.SOLVED)
  File "/opt/has/conductor/conductor/common/music/model/search.py", line 87, in get_plan_by_col
    rows = db_backend.DB_API.row_read(
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 128, in row_read
    schema = self.get_value(f'{keyspace}/{table}')
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 73, in get_value
    raw_value = self.get_raw_value(key)
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 70, in get_raw_value
    return self.get_client().get(key)[0]
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 67, in get_client
    raise EtcdClientException("Failed to establish connection with ETCD. GRPC {}".format(rpc_error.code()))
conductor.common.etcd.utils.EtcdClientException: Failed to establish connection with ETCD. GRPC StatusCode.UNAVAILABLE
2021-06-11 23:01:36,351||140355798768416|INFO|_service_manager|cotyledon._service_manager: [-] Child 151 exited with status 2
Process Process-2:
Traceback (most recent call last):
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 60, in get_client
    return etcd3.client(host=self.host, port=self.port,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 1178, in client
    return Etcd3Client(host=host,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 148, in __init__
    resp = self.auth_stub.Authenticate(auth_request, self.timeout)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 946, in __call__
    return _end_unary_response_blocking(state, call, False, None)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 849, in _end_unary_response_blocking
    raise _InactiveRpcError(state)
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
	status = StatusCode.UNAVAILABLE
	details = "etcdserver: request timed out"
	debug_error_string = "{"created":"@1623452505.278552828","description":"Error received from peer ipv4:10.242.66.24:2379","file":"src/core/lib/surface/call.cc","file_line":1067,"grpc_message":"etcdserver: request timed out","grpc_status":14}"
>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
    self.run()
  File "/usr/local/lib/python3.9/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_utils.py", line 63, in _bootstrap_process
    target(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 161, in create_and_wait
    sw = cls(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 175, in __init__
    self.service = config.service(worker_id, *args, **kwargs)
  File "/opt/has/conductor/conductor/reservation/service.py", line 115, in __init__
    self._init(conf, **kwargs)
  File "/opt/has/conductor/conductor/reservation/service.py", line 137, in _init
    self.data_service = self.setup_rpc(conf, "data")
  File "/opt/has/conductor/conductor/reservation/service.py", line 178, in setup_rpc
    transport = messaging.get_transport(conf=conf)
  File "/opt/has/conductor/conductor/messaging.py", line 56, in get_transport
    transport.keyspace_create(keyspace=keyspace)
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 92, in keyspace_create
    self.get_client().put_if_not_exists(keyspace, "This key is a placeholder for the keyspace".encode())
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 67, in get_client
    raise EtcdClientException("Failed to establish connection with ETCD. GRPC {}".format(rpc_error.code()))
conductor.common.etcd.utils.EtcdClientException: Failed to establish connection with ETCD. GRPC StatusCode.UNAVAILABLE
2021-06-11 23:01:45,297||140355798768416|INFO|_service_manager|cotyledon._service_manager: [-] Child 2849 exited with status 1
Process Process-3:
Traceback (most recent call last):
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 60, in get_client
    return etcd3.client(host=self.host, port=self.port,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 1178, in client
    return Etcd3Client(host=host,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 148, in __init__
    resp = self.auth_stub.Authenticate(auth_request, self.timeout)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 946, in __call__
    return _end_unary_response_blocking(state, call, False, None)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 849, in _end_unary_response_blocking
    raise _InactiveRpcError(state)
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
	status = StatusCode.UNAVAILABLE
	details = "etcdserver: request timed out"
	debug_error_string = "{"created":"@1623452518.444582320","description":"Error received from peer ipv4:10.242.66.24:2379","file":"src/core/lib/surface/call.cc","file_line":1067,"grpc_message":"etcdserver: request timed out","grpc_status":14}"
>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
    self.run()
  File "/usr/local/lib/python3.9/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_utils.py", line 63, in _bootstrap_process
    target(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 161, in create_and_wait
    sw = cls(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 175, in __init__
    self.service = config.service(worker_id, *args, **kwargs)
  File "/opt/has/conductor/conductor/reservation/service.py", line 115, in __init__
    self._init(conf, **kwargs)
  File "/opt/has/conductor/conductor/reservation/service.py", line 137, in _init
    self.data_service = self.setup_rpc(conf, "data")
  File "/opt/has/conductor/conductor/reservation/service.py", line 178, in setup_rpc
    transport = messaging.get_transport(conf=conf)
  File "/opt/has/conductor/conductor/messaging.py", line 56, in get_transport
    transport.keyspace_create(keyspace=keyspace)
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 92, in keyspace_create
    self.get_client().put_if_not_exists(keyspace, "This key is a placeholder for the keyspace".encode())
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 67, in get_client
    raise EtcdClientException("Failed to establish connection with ETCD. GRPC {}".format(rpc_error.code()))
conductor.common.etcd.utils.EtcdClientException: Failed to establish connection with ETCD. GRPC StatusCode.UNAVAILABLE
2021-06-11 23:01:58,452||140355798768416|INFO|_service_manager|cotyledon._service_manager: [-] Child 2866 exited with status 1
Process Process-4:
Traceback (most recent call last):
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 60, in get_client
    return etcd3.client(host=self.host, port=self.port,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 1178, in client
    return Etcd3Client(host=host,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 148, in __init__
    resp = self.auth_stub.Authenticate(auth_request, self.timeout)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 946, in __call__
    return _end_unary_response_blocking(state, call, False, None)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 849, in _end_unary_response_blocking
    raise _InactiveRpcError(state)
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
	status = StatusCode.UNAVAILABLE
	details = "etcdserver: request timed out"
	debug_error_string = "{"created":"@1623452525.470192159","description":"Error received from peer ipv4:10.242.159.201:2379","file":"src/core/lib/surface/call.cc","file_line":1067,"grpc_message":"etcdserver: request timed out","grpc_status":14}"
>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
    self.run()
  File "/usr/local/lib/python3.9/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_utils.py", line 63, in _bootstrap_process
    target(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 161, in create_and_wait
    sw = cls(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 175, in __init__
    self.service = config.service(worker_id, *args, **kwargs)
  File "/opt/has/conductor/conductor/reservation/service.py", line 115, in __init__
    self._init(conf, **kwargs)
  File "/opt/has/conductor/conductor/reservation/service.py", line 137, in _init
    self.data_service = self.setup_rpc(conf, "data")
  File "/opt/has/conductor/conductor/reservation/service.py", line 178, in setup_rpc
    transport = messaging.get_transport(conf=conf)
  File "/opt/has/conductor/conductor/messaging.py", line 56, in get_transport
    transport.keyspace_create(keyspace=keyspace)
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 92, in keyspace_create
    self.get_client().put_if_not_exists(keyspace, "This key is a placeholder for the keyspace".encode())
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 67, in get_client
    raise EtcdClientException("Failed to establish connection with ETCD. GRPC {}".format(rpc_error.code()))
conductor.common.etcd.utils.EtcdClientException: Failed to establish connection with ETCD. GRPC StatusCode.UNAVAILABLE
2021-06-11 23:02:05,482||140355798768416|INFO|_service_manager|cotyledon._service_manager: [-] Child 2894 exited with status 1
Process Process-5:
Traceback (most recent call last):
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 60, in get_client
    return etcd3.client(host=self.host, port=self.port,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 1178, in client
    return Etcd3Client(host=host,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 148, in __init__
    resp = self.auth_stub.Authenticate(auth_request, self.timeout)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 946, in __call__
    return _end_unary_response_blocking(state, call, False, None)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 849, in _end_unary_response_blocking
    raise _InactiveRpcError(state)
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
	status = StatusCode.UNAVAILABLE
	details = "etcdserver: request timed out"
	debug_error_string = "{"created":"@1623452539.470539386","description":"Error received from peer ipv4:10.242.159.201:2379","file":"src/core/lib/surface/call.cc","file_line":1067,"grpc_message":"etcdserver: request timed out","grpc_status":14}"
>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
    self.run()
  File "/usr/local/lib/python3.9/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_utils.py", line 63, in _bootstrap_process
    target(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 161, in create_and_wait
    sw = cls(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 175, in __init__
    self.service = config.service(worker_id, *args, **kwargs)
  File "/opt/has/conductor/conductor/reservation/service.py", line 115, in __init__
    self._init(conf, **kwargs)
  File "/opt/has/conductor/conductor/reservation/service.py", line 137, in _init
    self.data_service = self.setup_rpc(conf, "data")
  File "/opt/has/conductor/conductor/reservation/service.py", line 178, in setup_rpc
    transport = messaging.get_transport(conf=conf)
  File "/opt/has/conductor/conductor/messaging.py", line 56, in get_transport
    transport.keyspace_create(keyspace=keyspace)
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 92, in keyspace_create
    self.get_client().put_if_not_exists(keyspace, "This key is a placeholder for the keyspace".encode())
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 67, in get_client
    raise EtcdClientException("Failed to establish connection with ETCD. GRPC {}".format(rpc_error.code()))
conductor.common.etcd.utils.EtcdClientException: Failed to establish connection with ETCD. GRPC StatusCode.UNAVAILABLE
2021-06-11 23:02:19,484||140355798768416|INFO|_service_manager|cotyledon._service_manager: [-] Child 2900 exited with status 1
Process Process-6:
Traceback (most recent call last):
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 60, in get_client
    return etcd3.client(host=self.host, port=self.port,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 1178, in client
    return Etcd3Client(host=host,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 148, in __init__
    resp = self.auth_stub.Authenticate(auth_request, self.timeout)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 946, in __call__
    return _end_unary_response_blocking(state, call, False, None)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 849, in _end_unary_response_blocking
    raise _InactiveRpcError(state)
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
	status = StatusCode.UNAVAILABLE
	details = "etcdserver: request timed out"
	debug_error_string = "{"created":"@1623452553.425454264","description":"Error received from peer ipv4:10.242.96.165:2379","file":"src/core/lib/surface/call.cc","file_line":1067,"grpc_message":"etcdserver: request timed out","grpc_status":14}"
>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
    self.run()
  File "/usr/local/lib/python3.9/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_utils.py", line 63, in _bootstrap_process
    target(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 161, in create_and_wait
    sw = cls(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 175, in __init__
    self.service = config.service(worker_id, *args, **kwargs)
  File "/opt/has/conductor/conductor/reservation/service.py", line 115, in __init__
    self._init(conf, **kwargs)
  File "/opt/has/conductor/conductor/reservation/service.py", line 137, in _init
    self.data_service = self.setup_rpc(conf, "data")
  File "/opt/has/conductor/conductor/reservation/service.py", line 178, in setup_rpc
    transport = messaging.get_transport(conf=conf)
  File "/opt/has/conductor/conductor/messaging.py", line 56, in get_transport
    transport.keyspace_create(keyspace=keyspace)
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 92, in keyspace_create
    self.get_client().put_if_not_exists(keyspace, "This key is a placeholder for the keyspace".encode())
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 67, in get_client
    raise EtcdClientException("Failed to establish connection with ETCD. GRPC {}".format(rpc_error.code()))
conductor.common.etcd.utils.EtcdClientException: Failed to establish connection with ETCD. GRPC StatusCode.UNAVAILABLE
2021-06-11 23:02:33,437||140355798768416|INFO|_service_manager|cotyledon._service_manager: [-] Child 2928 exited with status 1
Process Process-7:
Traceback (most recent call last):
2021-06-11 23:02:40,560||140355798768416|INFO|_service_manager|cotyledon._service_manager: [-] Child 2945 exited with status 1
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 60, in get_client
    return etcd3.client(host=self.host, port=self.port,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 1178, in client
    return Etcd3Client(host=host,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 148, in __init__
    resp = self.auth_stub.Authenticate(auth_request, self.timeout)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 946, in __call__
    return _end_unary_response_blocking(state, call, False, None)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 849, in _end_unary_response_blocking
    raise _InactiveRpcError(state)
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
	status = StatusCode.UNAVAILABLE
	details = "etcdserver: request timed out"
	debug_error_string = "{"created":"@1623452560.535863201","description":"Error received from peer ipv4:10.242.159.201:2379","file":"src/core/lib/surface/call.cc","file_line":1067,"grpc_message":"etcdserver: request timed out","grpc_status":14}"
>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
    self.run()
  File "/usr/local/lib/python3.9/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_utils.py", line 63, in _bootstrap_process
    target(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 161, in create_and_wait
    sw = cls(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 175, in __init__
    self.service = config.service(worker_id, *args, **kwargs)
  File "/opt/has/conductor/conductor/reservation/service.py", line 115, in __init__
    self._init(conf, **kwargs)
  File "/opt/has/conductor/conductor/reservation/service.py", line 137, in _init
    self.data_service = self.setup_rpc(conf, "data")
  File "/opt/has/conductor/conductor/reservation/service.py", line 178, in setup_rpc
    transport = messaging.get_transport(conf=conf)
  File "/opt/has/conductor/conductor/messaging.py", line 56, in get_transport
    transport.keyspace_create(keyspace=keyspace)
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 92, in keyspace_create
    self.get_client().put_if_not_exists(keyspace, "This key is a placeholder for the keyspace".encode())
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 67, in get_client
    raise EtcdClientException("Failed to establish connection with ETCD. GRPC {}".format(rpc_error.code()))
conductor.common.etcd.utils.EtcdClientException: Failed to establish connection with ETCD. GRPC StatusCode.UNAVAILABLE
2021-06-12 00:04:01,125||140355796646688|ERROR|_utils|cotyledon._utils: [-] Unhandled exception
Traceback (most recent call last):
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 60, in get_client
    return etcd3.client(host=self.host, port=self.port,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 1178, in client
    return Etcd3Client(host=host,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 148, in __init__
    resp = self.auth_stub.Authenticate(auth_request, self.timeout)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 946, in __call__
    return _end_unary_response_blocking(state, call, False, None)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 849, in _end_unary_response_blocking
    raise _InactiveRpcError(state)
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
	status = StatusCode.UNAVAILABLE
	details = "etcdserver: request timed out"
	debug_error_string = "{"created":"@1623456241.123655119","description":"Error received from peer ipv4:10.242.159.201:2379","file":"src/core/lib/surface/call.cc","file_line":1067,"grpc_message":"etcdserver: request timed out","grpc_status":14}"
>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_utils.py", line 95, in exit_on_exception
    yield
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 139, in _run
    self.run()
  File "/opt/has/conductor/conductor/reservation/service.py", line 264, in run
    solved_plans = self.Plan.query.get_plan_by_col("status", self.Plan.SOLVED)
  File "/opt/has/conductor/conductor/common/music/model/search.py", line 87, in get_plan_by_col
    rows = db_backend.DB_API.row_read(
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 128, in row_read
    schema = self.get_value(f'{keyspace}/{table}')
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 73, in get_value
    raw_value = self.get_raw_value(key)
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 70, in get_raw_value
    return self.get_client().get(key)[0]
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 67, in get_client
    raise EtcdClientException("Failed to establish connection with ETCD. GRPC {}".format(rpc_error.code()))
conductor.common.etcd.utils.EtcdClientException: Failed to establish connection with ETCD. GRPC StatusCode.UNAVAILABLE
2021-06-12 00:04:01,148||140355798768416|INFO|_service_manager|cotyledon._service_manager: [-] Child 2963 exited with status 2
2021-06-12 00:04:45,048||140355796646688|ERROR|_utils|cotyledon._utils: [-] Unhandled exception
Traceback (most recent call last):
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 60, in get_client
    return etcd3.client(host=self.host, port=self.port,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 1178, in client
    return Etcd3Client(host=host,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 148, in __init__
    resp = self.auth_stub.Authenticate(auth_request, self.timeout)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 946, in __call__
    return _end_unary_response_blocking(state, call, False, None)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 849, in _end_unary_response_blocking
    raise _InactiveRpcError(state)
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
	status = StatusCode.UNAVAILABLE
	details = "etcdserver: request timed out"
	debug_error_string = "{"created":"@1623456285.046307306","description":"Error received from peer ipv4:10.242.96.165:2379","file":"src/core/lib/surface/call.cc","file_line":1067,"grpc_message":"etcdserver: request timed out","grpc_status":14}"
>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_utils.py", line 95, in exit_on_exception
    yield
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 139, in _run
    self.run()
  File "/opt/has/conductor/conductor/reservation/service.py", line 264, in run
    solved_plans = self.Plan.query.get_plan_by_col("status", self.Plan.SOLVED)
  File "/opt/has/conductor/conductor/common/music/model/search.py", line 87, in get_plan_by_col
    rows = db_backend.DB_API.row_read(
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 134, in row_read
    return self.get_values_prefix(key_prefix, pk_name, pk_value)
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 80, in get_values_prefix
    for kv in self.get_client().get_prefix(key_prefix)}
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 67, in get_client
    raise EtcdClientException("Failed to establish connection with ETCD. GRPC {}".format(rpc_error.code()))
conductor.common.etcd.utils.EtcdClientException: Failed to establish connection with ETCD. GRPC StatusCode.UNAVAILABLE
2021-06-12 00:04:45,057||140355798768416|INFO|_service_manager|cotyledon._service_manager: [-] Child 22641 exited with status 2
2021-06-12 00:05:31,346||140355796646688|ERROR|_utils|cotyledon._utils: [-] Unhandled exception
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 46, in handler
    return f(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 302, in get_prefix_response
    return self.kvstub.Range(
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 946, in __call__
    return _end_unary_response_blocking(state, call, False, None)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 849, in _end_unary_response_blocking
    raise _InactiveRpcError(state)
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
	status = StatusCode.UNAVAILABLE
	details = "etcdserver: request timed out"
	debug_error_string = "{"created":"@1623456331.346041076","description":"Error received from peer ipv4:10.242.159.201:2379","file":"src/core/lib/surface/call.cc","file_line":1067,"grpc_message":"etcdserver: request timed out","grpc_status":14}"
>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_utils.py", line 95, in exit_on_exception
    yield
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 139, in _run
    self.run()
  File "/opt/has/conductor/conductor/reservation/service.py", line 264, in run
    solved_plans = self.Plan.query.get_plan_by_col("status", self.Plan.SOLVED)
  File "/opt/has/conductor/conductor/common/music/model/search.py", line 87, in get_plan_by_col
    rows = db_backend.DB_API.row_read(
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 134, in row_read
    return self.get_values_prefix(key_prefix, pk_name, pk_value)
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 80, in get_values_prefix
    for kv in self.get_client().get_prefix(key_prefix)}
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 318, in get_prefix
    range_response = self.get_prefix_response(key_prefix, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 48, in handler
    _translate_exception(exc)
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 32, in _translate_exception
    raise exception
etcd3.exceptions.ConnectionFailedError: etcd connection failed
2021-06-12 00:05:31,356||140355798768416|INFO|_service_manager|cotyledon._service_manager: [-] Child 22739 exited with status 2
2021-06-12 00:05:44,899||140355796646688|ERROR|_utils|cotyledon._utils: [-] Unhandled exception
Traceback (most recent call last):
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 60, in get_client
    return etcd3.client(host=self.host, port=self.port,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 1178, in client
    return Etcd3Client(host=host,
  File "/usr/local/lib/python3.9/site-packages/etcd3/client.py", line 148, in __init__
    resp = self.auth_stub.Authenticate(auth_request, self.timeout)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 946, in __call__
    return _end_unary_response_blocking(state, call, False, None)
  File "/usr/local/lib/python3.9/site-packages/grpc/_channel.py", line 849, in _end_unary_response_blocking
    raise _InactiveRpcError(state)
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
	status = StatusCode.UNAVAILABLE
	details = "etcdserver: request timed out"
	debug_error_string = "{"created":"@1623456344.898419917","description":"Error received from peer ipv4:10.242.159.201:2379","file":"src/core/lib/surface/call.cc","file_line":1067,"grpc_message":"etcdserver: request timed out","grpc_status":14}"
>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_utils.py", line 95, in exit_on_exception
    yield
  File "/usr/local/lib/python3.9/site-packages/cotyledon/_service.py", line 139, in _run
    self.run()
  File "/opt/has/conductor/conductor/reservation/service.py", line 264, in run
    solved_plans = self.Plan.query.get_plan_by_col("status", self.Plan.SOLVED)
  File "/opt/has/conductor/conductor/common/music/model/search.py", line 87, in get_plan_by_col
    rows = db_backend.DB_API.row_read(
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 128, in row_read
    schema = self.get_value(f'{keyspace}/{table}')
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 73, in get_value
    raw_value = self.get_raw_value(key)
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 70, in get_raw_value
    return self.get_client().get(key)[0]
  File "/opt/has/conductor/conductor/common/etcd/api.py", line 67, in get_client
    raise EtcdClientException("Failed to establish connection with ETCD. GRPC {}".format(rpc_error.code()))
conductor.common.etcd.utils.EtcdClientException: Failed to establish connection with ETCD. GRPC StatusCode.UNAVAILABLE
2021-06-12 00:05:44,905||140355798768416|INFO|_service_manager|cotyledon._service_manager: [-] Child 22823 exited with status 2