[
https://issues.apache.org/jira/browse/FLINK-20254?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Leonard Xu updated FLINK-20254:
-------------------------------
Description:
[https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=9808&view=logs&j=fc5181b0-e452-5c8f-68de-1097947f6483&t=62110053-334f-5295-a0ab-80dd7e2babbf]
{code:java}
2020-11-19T10:34:23.5591765Z [ERROR] Tests run: 18, Failures: 0, Errors: 1,
Skipped: 0, Time elapsed: 192.243 s <<< FAILURE! - in
org.apache.flink.connectors.hive.HiveTableSourceITCase
2020-11-19T10:34:23.5593193Z [ERROR]
testStreamPartitionReadByCreateTime(org.apache.flink.connectors.hive.HiveTableSourceITCase)
Time elapsed: 120.075 s <<< ERROR!
2020-11-19T10:34:23.5593929Z org.junit.runners.model.TestTimedOutException:
test timed out after 120000 milliseconds
2020-11-19T10:34:23.5594321Z at java.lang.Thread.sleep(Native Method)
2020-11-19T10:34:23.5594777Z at
org.apache.flink.streaming.api.operators.collect.CollectResultFetcher.sleepBeforeRetry(CollectResultFetcher.java:231)
2020-11-19T10:34:23.5595378Z at
org.apache.flink.streaming.api.operators.collect.CollectResultFetcher.next(CollectResultFetcher.java:119)
2020-11-19T10:34:23.5596001Z at
org.apache.flink.streaming.api.operators.collect.CollectResultIterator.nextResultFromFetcher(CollectResultIterator.java:103)
2020-11-19T10:34:23.5596610Z at
org.apache.flink.streaming.api.operators.collect.CollectResultIterator.hasNext(CollectResultIterator.java:77)
2020-11-19T10:34:23.5597218Z at
org.apache.flink.table.planner.sinks.SelectTableSinkBase$RowIteratorWrapper.hasNext(SelectTableSinkBase.java:115)
2020-11-19T10:34:23.5597811Z at
org.apache.flink.table.api.internal.TableResultImpl$CloseableRowIteratorWrapper.hasNext(TableResultImpl.java:355)
2020-11-19T10:34:23.5598555Z at
org.apache.flink.connectors.hive.HiveTableSourceITCase.fetchRows(HiveTableSourceITCase.java:653)
2020-11-19T10:34:23.5599407Z at
org.apache.flink.connectors.hive.HiveTableSourceITCase.testStreamPartitionReadByCreateTime(HiveTableSourceITCase.java:594)
2020-11-19T10:34:23.5599982Z at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2020-11-19T10:34:23.5600393Z at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
2020-11-19T10:34:23.5600865Z at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
2020-11-19T10:34:23.5601300Z at
java.lang.reflect.Method.invoke(Method.java:498)
2020-11-19T10:34:23.5601713Z at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
2020-11-19T10:34:23.5602211Z at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
2020-11-19T10:34:23.5602688Z at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
2020-11-19T10:34:23.5603181Z at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
2020-11-19T10:34:23.5603753Z at
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
2020-11-19T10:34:23.5604308Z at
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
2020-11-19T10:34:23.5604780Z at
java.util.concurrent.FutureTask.run(FutureTask.java:266)
2020-11-19T10:34:23.5605114Z at java.lang.Thread.run(Thread.java:748)
2020-11-19T10:34:23.5605299Z
2020-11-19T10:34:24.4180149Z [INFO] Running
org.apache.flink.connectors.hive.TableEnvHiveConnectorITCase
{code}
I've spent some time to debug this case in local env, but unfortunately I
didn't find the root cause. I think this is the same case with FLINK-22129,
FLINK-22100, but after the debug, I think the Hiv, and the root cause may be
related to FLINK-21996.
Given some debug results:
* 1. Run HiveTableSourceITCase.testStreamPartitionReadByCreateTime times out
repeatedly in IDE, it mostly failed in the aboud the 36th round
* 2. The thread usually hang on
{code:java}
org.apache.flink.streaming.api.operators.collect.CollectResultFetcher.next(CollectResultFetcher.java:119){code}
{code:java}
org.apache.flink.streaming.api.operators.collect.CollectResultFetcher.sendRequest(CollectResultFetcher.java:155){code}
I try to add timeout for CompletableFutures in CollectResultFetcher, but looks
it doesn't help
* 3. When the thread stuck, the SourceReaderBase#addSplits may recieve split
or may not(I reproduced multiple round)， but before the test failed, there're a
checkpoint ERRORR which may related to the case.
{code:java}
INFO org.apache.flink.runtime.jobmaster.JobMaster [] - Running
initialization on master for job collect (3572e9cf6c0829ebc9f765555327388d).
INFO org.apache.flink.runtime.checkpoint.CheckpointCoordinator [] - No
checkpoint found during restore.
INFO org.apache.flink.runtime.jobmaster.JobMaster [] - Using
failover strategy
org.apache.flink.runtime.executiongraph.failover.flip1.RestartPipelinedRegionFailoverStrategy@76f98551
for collect (3572e9cf6c0829ebc9f765555327388d).
INFO
org.apache.flink.runtime.highavailability.nonha.embedded.EmbeddedLeaderService
[] - Received confirmation of leadership for leader
akka://flink/user/rpc/jobmanager_147 , session=0d15d532-d739-410f-9
.....
WARN org.apache.flink.runtime.checkpoint.CheckpointCoordinator [] - Failed
to trigger checkpoint for job 3572e9cf6c0829ebc9f765555327388d.)
org.apache.flink.runtime.checkpoint.CheckpointException: Checkpoint triggering
task Source: HiveSource-source_db.stream_create_time_test ->
SinkConversionToTuple2 -> Sink: Select table sink (1/1) of job
3572e9cf6c0829ebc9f765555327388d has not being executed at the moment. Aborting
checkpoint. Failure reason: Not all required tasks are currently running.
at
org.apache.flink.runtime.checkpoint.DefaultCheckpointPlanCalculator.checkTasksStarted(DefaultCheckpointPlanCalculator.java:152)
~[classes/:?]
at
org.apache.flink.runtime.checkpoint.DefaultCheckpointPlanCalculator.lambda$calculateCheckpointPlan$1(DefaultCheckpointPlanCalculator.java:114)
~[classes/:?]
at
java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590)
~[?:1.8.0_172]
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRunAsync(AkkaRpcActor.java:440)
~[classes/:?]
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:208)
~[classes/:?]
at
org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:77)
~[classes/:?]
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:158)
~[classes/:?]
at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:26)
~[akka-actor_2.11-2.5.21.jar:2.5.21]
at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:21)
~[akka-actor_2.11-2.5.21.jar:2.5.21]
at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:123)
~[scala-library-2.11.12.jar:?]
at akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:21)
~[akka-actor_2.11-2.5.21.jar:2.5.21]
at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:170)
~[scala-library-2.11.12.jar:?]
at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
~[scala-library-2.11.12.jar:?]
at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
~[scala-library-2.11.12.jar:?]
at akka.actor.Actor$class.aroundReceive(Actor.scala:517)
~[akka-actor_2.11-2.5.21.jar:2.5.21]
at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:225)
~[akka-actor_2.11-2.5.21.jar:2.5.21]
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:592)
~[akka-actor_2.11-2.5.21.jar:2.5.21]
at akka.actor.ActorCell.invoke(ActorCell.scala:561)
~[akka-actor_2.11-2.5.21.jar:2.5.21]
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:258)
~[akka-actor_2.11-2.5.21.jar:2.5.21]
at akka.dispatch.Mailbox.run(Mailbox.scala:225)
~[akka-actor_2.11-2.5.21.jar:2.5.21]
at akka.dispatch.Mailbox.exec(Mailbox.scala:235)
~[akka-actor_2.11-2.5.21.jar:2.5.21]
at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
~[akka-actor_2.11-2.5.21.jar:2.5.21]
at
akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
~[akka-actor_2.11-2.5.21.jar:2.5.21]
at
akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
~[akka-actor_2.11-2.5.21.jar:2.5.21]
at
akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
~[akka-actor_2.11-2.5.21.jar:2.5.21]{code}
was:
https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=9808&view=logs&j=fc5181b0-e452-5c8f-68de-1097947f6483&t=62110053-334f-5295-a0ab-80dd7e2babbf
{code}
2020-11-19T10:34:23.5591765Z [ERROR] Tests run: 18, Failures: 0, Errors: 1,
Skipped: 0, Time elapsed: 192.243 s <<< FAILURE! - in
org.apache.flink.connectors.hive.HiveTableSourceITCase
2020-11-19T10:34:23.5593193Z [ERROR]
testStreamPartitionReadByCreateTime(org.apache.flink.connectors.hive.HiveTableSourceITCase)
Time elapsed: 120.075 s <<< ERROR!
2020-11-19T10:34:23.5593929Z org.junit.runners.model.TestTimedOutException:
test timed out after 120000 milliseconds
2020-11-19T10:34:23.5594321Z at java.lang.Thread.sleep(Native Method)
2020-11-19T10:34:23.5594777Z at
org.apache.flink.streaming.api.operators.collect.CollectResultFetcher.sleepBeforeRetry(CollectResultFetcher.java:231)
2020-11-19T10:34:23.5595378Z at
org.apache.flink.streaming.api.operators.collect.CollectResultFetcher.next(CollectResultFetcher.java:119)
2020-11-19T10:34:23.5596001Z at
org.apache.flink.streaming.api.operators.collect.CollectResultIterator.nextResultFromFetcher(CollectResultIterator.java:103)
2020-11-19T10:34:23.5596610Z at
org.apache.flink.streaming.api.operators.collect.CollectResultIterator.hasNext(CollectResultIterator.java:77)
2020-11-19T10:34:23.5597218Z at
org.apache.flink.table.planner.sinks.SelectTableSinkBase$RowIteratorWrapper.hasNext(SelectTableSinkBase.java:115)
2020-11-19T10:34:23.5597811Z at
org.apache.flink.table.api.internal.TableResultImpl$CloseableRowIteratorWrapper.hasNext(TableResultImpl.java:355)
2020-11-19T10:34:23.5598555Z at
org.apache.flink.connectors.hive.HiveTableSourceITCase.fetchRows(HiveTableSourceITCase.java:653)
2020-11-19T10:34:23.5599407Z at
org.apache.flink.connectors.hive.HiveTableSourceITCase.testStreamPartitionReadByCreateTime(HiveTableSourceITCase.java:594)
2020-11-19T10:34:23.5599982Z at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2020-11-19T10:34:23.5600393Z at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
2020-11-19T10:34:23.5600865Z at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
2020-11-19T10:34:23.5601300Z at
java.lang.reflect.Method.invoke(Method.java:498)
2020-11-19T10:34:23.5601713Z at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
2020-11-19T10:34:23.5602211Z at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
2020-11-19T10:34:23.5602688Z at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
2020-11-19T10:34:23.5603181Z at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
2020-11-19T10:34:23.5603753Z at
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
2020-11-19T10:34:23.5604308Z at
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
2020-11-19T10:34:23.5604780Z at
java.util.concurrent.FutureTask.run(FutureTask.java:266)
2020-11-19T10:34:23.5605114Z at java.lang.Thread.run(Thread.java:748)
2020-11-19T10:34:23.5605299Z
2020-11-19T10:34:24.4180149Z [INFO] Running
org.apache.flink.connectors.hive.TableEnvHiveConnectorITCase
{code}
> HiveTableSourceITCase.testStreamPartitionReadByCreateTime times out
> -------------------------------------------------------------------
>
> Key: FLINK-20254
> URL: https://issues.apache.org/jira/browse/FLINK-20254
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Hive
> Affects Versions: 1.12.0, 1.13.0
> Reporter: Robert Metzger
> Assignee: Leonard Xu
> Priority: Critical
> Labels: pull-request-available, test-stability
> Fix For: 1.13.0
>
>
> [https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=9808&view=logs&j=fc5181b0-e452-5c8f-68de-1097947f6483&t=62110053-334f-5295-a0ab-80dd7e2babbf]
> {code:java}
> 2020-11-19T10:34:23.5591765Z [ERROR] Tests run: 18, Failures: 0, Errors: 1,
> Skipped: 0, Time elapsed: 192.243 s <<< FAILURE! - in
> org.apache.flink.connectors.hive.HiveTableSourceITCase
> 2020-11-19T10:34:23.5593193Z [ERROR]
> testStreamPartitionReadByCreateTime(org.apache.flink.connectors.hive.HiveTableSourceITCase)
> Time elapsed: 120.075 s <<< ERROR!
> 2020-11-19T10:34:23.5593929Z org.junit.runners.model.TestTimedOutException:
> test timed out after 120000 milliseconds
> 2020-11-19T10:34:23.5594321Z at java.lang.Thread.sleep(Native Method)
> 2020-11-19T10:34:23.5594777Z at
> org.apache.flink.streaming.api.operators.collect.CollectResultFetcher.sleepBeforeRetry(CollectResultFetcher.java:231)
> 2020-11-19T10:34:23.5595378Z at
> org.apache.flink.streaming.api.operators.collect.CollectResultFetcher.next(CollectResultFetcher.java:119)
> 2020-11-19T10:34:23.5596001Z at
> org.apache.flink.streaming.api.operators.collect.CollectResultIterator.nextResultFromFetcher(CollectResultIterator.java:103)
> 2020-11-19T10:34:23.5596610Z at
> org.apache.flink.streaming.api.operators.collect.CollectResultIterator.hasNext(CollectResultIterator.java:77)
> 2020-11-19T10:34:23.5597218Z at
> org.apache.flink.table.planner.sinks.SelectTableSinkBase$RowIteratorWrapper.hasNext(SelectTableSinkBase.java:115)
> 2020-11-19T10:34:23.5597811Z at
> org.apache.flink.table.api.internal.TableResultImpl$CloseableRowIteratorWrapper.hasNext(TableResultImpl.java:355)
> 2020-11-19T10:34:23.5598555Z at
> org.apache.flink.connectors.hive.HiveTableSourceITCase.fetchRows(HiveTableSourceITCase.java:653)
> 2020-11-19T10:34:23.5599407Z at
> org.apache.flink.connectors.hive.HiveTableSourceITCase.testStreamPartitionReadByCreateTime(HiveTableSourceITCase.java:594)
> 2020-11-19T10:34:23.5599982Z at
> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 2020-11-19T10:34:23.5600393Z at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> 2020-11-19T10:34:23.5600865Z at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 2020-11-19T10:34:23.5601300Z at
> java.lang.reflect.Method.invoke(Method.java:498)
> 2020-11-19T10:34:23.5601713Z at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> 2020-11-19T10:34:23.5602211Z at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> 2020-11-19T10:34:23.5602688Z at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> 2020-11-19T10:34:23.5603181Z at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> 2020-11-19T10:34:23.5603753Z at
> org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
> 2020-11-19T10:34:23.5604308Z at
> org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
> 2020-11-19T10:34:23.5604780Z at
> java.util.concurrent.FutureTask.run(FutureTask.java:266)
> 2020-11-19T10:34:23.5605114Z at java.lang.Thread.run(Thread.java:748)
> 2020-11-19T10:34:23.5605299Z
> 2020-11-19T10:34:24.4180149Z [INFO] Running
> org.apache.flink.connectors.hive.TableEnvHiveConnectorITCase
> {code}
>
> I've spent some time to debug this case in local env, but unfortunately I
> didn't find the root cause. I think this is the same case with FLINK-22129,
> FLINK-22100, but after the debug, I think the Hiv, and the root cause may be
> related to FLINK-21996.
> Given some debug results:
> * 1. Run HiveTableSourceITCase.testStreamPartitionReadByCreateTime times out
> repeatedly in IDE, it mostly failed in the aboud the 36th round
> * 2. The thread usually hang on
> {code:java}
> org.apache.flink.streaming.api.operators.collect.CollectResultFetcher.next(CollectResultFetcher.java:119){code}
> {code:java}
> org.apache.flink.streaming.api.operators.collect.CollectResultFetcher.sendRequest(CollectResultFetcher.java:155){code}
> I try to add timeout for CompletableFutures in CollectResultFetcher, but
> looks it doesn't help
>
> * 3. When the thread stuck, the SourceReaderBase#addSplits may recieve split
> or may not(I reproduced multiple round)， but before the test failed, there're
> a checkpoint ERRORR which may related to the case.
> {code:java}
> INFO org.apache.flink.runtime.jobmaster.JobMaster [] -
> Running initialization on master for job collect
> (3572e9cf6c0829ebc9f765555327388d).
> INFO org.apache.flink.runtime.checkpoint.CheckpointCoordinator [] - No
> checkpoint found during restore.
> INFO org.apache.flink.runtime.jobmaster.JobMaster [] - Using
> failover strategy
> org.apache.flink.runtime.executiongraph.failover.flip1.RestartPipelinedRegionFailoverStrategy@76f98551
> for collect (3572e9cf6c0829ebc9f765555327388d).
> INFO
> org.apache.flink.runtime.highavailability.nonha.embedded.EmbeddedLeaderService
> [] - Received confirmation of leadership for leader
> akka://flink/user/rpc/jobmanager_147 , session=0d15d532-d739-410f-9
> .....
> WARN org.apache.flink.runtime.checkpoint.CheckpointCoordinator [] -
> Failed to trigger checkpoint for job 3572e9cf6c0829ebc9f765555327388d.)
> org.apache.flink.runtime.checkpoint.CheckpointException: Checkpoint
> triggering task Source: HiveSource-source_db.stream_create_time_test ->
> SinkConversionToTuple2 -> Sink: Select table sink (1/1) of job
> 3572e9cf6c0829ebc9f765555327388d has not being executed at the moment.
> Aborting checkpoint. Failure reason: Not all required tasks are currently
> running.
> at
> org.apache.flink.runtime.checkpoint.DefaultCheckpointPlanCalculator.checkTasksStarted(DefaultCheckpointPlanCalculator.java:152)
> ~[classes/:?]
> at
> org.apache.flink.runtime.checkpoint.DefaultCheckpointPlanCalculator.lambda$calculateCheckpointPlan$1(DefaultCheckpointPlanCalculator.java:114)
> ~[classes/:?]
> at
> java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590)
> ~[?:1.8.0_172]
> at
> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRunAsync(AkkaRpcActor.java:440)
> ~[classes/:?]
> at
> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:208)
> ~[classes/:?]
> at
> org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:77)
> ~[classes/:?]
> at
> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:158)
> ~[classes/:?]
> at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:26)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:21)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:123)
> ~[scala-library-2.11.12.jar:?]
> at
> akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:21)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at
> scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:170)
> ~[scala-library-2.11.12.jar:?]
> at
> scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
> ~[scala-library-2.11.12.jar:?]
> at
> scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
> ~[scala-library-2.11.12.jar:?]
> at akka.actor.Actor$class.aroundReceive(Actor.scala:517)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:225)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at akka.actor.ActorCell.receiveMessage(ActorCell.scala:592)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at akka.actor.ActorCell.invoke(ActorCell.scala:561)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:258)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at akka.dispatch.Mailbox.run(Mailbox.scala:225)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at akka.dispatch.Mailbox.exec(Mailbox.scala:235)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at
> akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at
> akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]
> at
> akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
> ~[akka-actor_2.11-2.5.21.jar:2.5.21]{code}
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