[FLINK-29576] Serialized OperatorCoordinators are collected in a not thread-safe ArrayList even though serialization was parallelized in FLINK-26675 - ASF JIRA

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Details

Type: Bug
Status: Resolved
Priority: Blocker
Resolution: Fixed
Affects Version/s: 1.16.0, 1.17.0
Fix Version/s: 1.16.0, 1.17.0
Component/s: API / DataStream, Runtime / Coordination
Labels:
- pull-request-available
- test-stability

Description

There's a build failure being caused by SourceNAryInputChainingITCase.testDirectSourcesOnlyExecution on master:

Oct 11 01:45:36 [ERROR] Errors: 
Oct 11 01:45:36 [ERROR]   SourceNAryInputChainingITCase.testDirectSourcesOnlyExecution:89 » Runtime Fail...
Oct 11 01:45:36 [INFO] 
Oct 11 01:45:36 [ERROR] Tests run: 1931, Failures: 0, Errors: 1, Skipped: 4

The actual cause might be a missing OperatorCoordinatorHolder in DefaultOperatorCoordinatorHandler (see attached Maven logs that were extracted from the linked build):

01:44:28,248 [flink-akka.actor.default-dispatcher-5] WARN  org.apache.flink.runtime.taskmanager.Task                    [] - MultipleInputOperator [Source: source-1, Source: source-2, Source: source-3] (1/4)#0 (9babb402557eb959216c28116aabddbe_1dd2eb40b0971d6d849b9e4a69494c88_0_0) switched from RUNNING to FAILED with failure cause: org.apache.flink.util.FlinkException: No coordinator registered for operator bc764cd8ddf7a0cff126f51c16239658
        at org.apache.flink.runtime.scheduler.DefaultOperatorCoordinatorHandler.deliverOperatorEventToCoordinator(DefaultOperatorCoordinatorHandler.java:117)
        at org.apache.flink.runtime.scheduler.SchedulerBase.deliverOperatorEventToCoordinator(SchedulerBase.java:1031)
        at org.apache.flink.runtime.jobmaster.JobMaster.sendOperatorEventToCoordinator(JobMaster.java:588)
        at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.lambda$handleRpcInvocation$1(AkkaRpcActor.java:309)
        at org.apache.flink.runtime.concurrent.akka.ClassLoadingUtils.runWithContextClassLoader(ClassLoadingUtils.java:83)
        at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcInvocation(AkkaRpcActor.java:307)
        at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:222)
        at org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:84)
        at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:168)
        at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:24)
        at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:20)
        at scala.PartialFunction.applyOrElse(PartialFunction.scala:123)
        at scala.PartialFunction.applyOrElse$(PartialFunction.scala:122)
        at akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:20)
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172)
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172)
        at akka.actor.Actor.aroundReceive(Actor.scala:537)
        at akka.actor.Actor.aroundReceive$(Actor.scala:535)
        at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:220)
        at akka.actor.ActorCell.receiveMessage(ActorCell.scala:580)
        at akka.actor.ActorCell.invoke(ActorCell.scala:548)
        at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:270)
        at akka.dispatch.Mailbox.run(Mailbox.scala:231)
        at akka.dispatch.Mailbox.exec(Mailbox.scala:243)
        at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
        at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
        at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
        at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:175)