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https://issues.apache.org/jira/browse/FLINK-20285?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17237136#comment-17237136
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Xintong Song commented on FLINK-20285:
--------------------------------------
[~zhuzh]
Thanks for reporting this issue. This indeed sounds should be a release blocker
to me.
Any plan how and when this issue can be fixed?
> LazyFromSourcesSchedulingStrategy is possible to schedule non-CREATED vertices
> ------------------------------------------------------------------------------
>
> Key: FLINK-20285
> URL: https://issues.apache.org/jira/browse/FLINK-20285
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Coordination
> Affects Versions: 1.11.0
> Reporter: Zhu Zhu
> Assignee: Zhu Zhu
> Priority: Blocker
> Fix For: 1.12.0, 1.11.3
>
>
> LazyFromSourcesSchedulingStrategy is possible to schedule vertices which are
> not in CREATED state. This will lead result in unexpected check failure and
> result in fatal error (see attached error).
> The reason is that the status of a vertex to schedule was changed in
> LazyFromSourcesSchedulingStrategy#allocateSlotsAndDeployExecutionVertices()
> during the invocation of schedulerOperations.allocateSlotsAndDeploy(...) on
> other vertices.
> e.g. ev1 and ev2 are in the same pipelined region and are restarted one by
> one in the scheduling loop in
> LazyFromSourcesSchedulingStrategy#allocateSlotsAndDeployExecutionVertices().
> They are all CREATED at the moment. ev1 is scheduled first but it immediately
> fails due to some slot allocation error and ev2 will be canceled as a result.
> So when ev2 is scheduled, its state would be CANCELED and the state check
> failed.
> More details see FLINK-20220.
> {code:java}
> 2020-11-19 13:34:17,231 ERROR
> org.apache.flink.runtime.util.FatalExitExceptionHandler [] - FATAL:
> Thread 'flink-akka.actor.default-dispatcher-15' produced an uncaught
> exception. Stopping the process...
> java.util.concurrent.CompletionException: java.lang.IllegalStateException:
> expected vertex aafcbb93173905cec9672e46932d7790_3 to be in CREATED state,
> was: CANCELED
> at
> java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273)
> ~[?:1.8.0_222]
> at
> java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:280)
> ~[?:1.8.0_222]
> at
> java.util.concurrent.CompletableFuture.uniRun(CompletableFuture.java:708)
> ~[?:1.8.0_222]
> at
> java.util.concurrent.CompletableFuture$UniRun.tryFire(CompletableFuture.java:687)
> ~[?:1.8.0_222]
> at
> java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442)
> ~[?:1.8.0_222]
> at
> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRunAsync(AkkaRpcActor.java:402)
> ~[flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:195)
> ~[flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:74)
> ~[flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:152)
> ~[flink-dist_2.11-1.11.2.jar:1.11.2]
> at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:26)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:21)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:123)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:21)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:170)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at akka.actor.Actor$class.aroundReceive(Actor.scala:517)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:225)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at akka.actor.ActorCell.receiveMessage(ActorCell.scala:592)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at akka.actor.ActorCell.invoke(ActorCell.scala:561)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:258)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at akka.dispatch.Mailbox.run(Mailbox.scala:225)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at akka.dispatch.Mailbox.exec(Mailbox.scala:235)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
> [flink-dist_2.11-1.11.2.jar:1.11.2]
> Caused by: java.lang.IllegalStateException: expected vertex
> aafcbb93173905cec9672e46932d7790_3 to be in CREATED state, was: CANCELED
> at
> org.apache.flink.util.Preconditions.checkState(Preconditions.java:217)
> ~[flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> org.apache.flink.runtime.scheduler.DefaultScheduler.lambda$validateDeploymentOptions$3(DefaultScheduler.java:326)
> ~[flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
> ~[?:1.8.0_222]
> at
> java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
> ~[?:1.8.0_222]
> at
> java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
> ~[?:1.8.0_222]
> at java.util.Collections$2.tryAdvance(Collections.java:4719)
> ~[?:1.8.0_222]
> at java.util.Collections$2.forEachRemaining(Collections.java:4727)
> ~[?:1.8.0_222]
> at
> java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
> ~[?:1.8.0_222]
> at
> java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
> ~[?:1.8.0_222]
> at
> java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
> ~[?:1.8.0_222]
> at
> java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
> ~[?:1.8.0_222]
> at
> java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
> ~[?:1.8.0_222]
> at
> java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:485)
> ~[?:1.8.0_222]
> at
> org.apache.flink.runtime.scheduler.DefaultScheduler.validateDeploymentOptions(DefaultScheduler.java:326)
> ~[flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> org.apache.flink.runtime.scheduler.DefaultScheduler.allocateSlotsAndDeploy(DefaultScheduler.java:297)
> ~[flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> org.apache.flink.runtime.scheduler.strategy.LazyFromSourcesSchedulingStrategy.allocateSlotsAndDeployExecutionVertices(LazyFromSourcesSchedulingStrategy.java:140)
> ~[flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> org.apache.flink.runtime.scheduler.strategy.LazyFromSourcesSchedulingStrategy.restartTasks(LazyFromSourcesSchedulingStrategy.java:93)
> ~[flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> org.apache.flink.runtime.scheduler.DefaultScheduler.lambda$restartTasks$2(DefaultScheduler.java:265)
> ~[flink-dist_2.11-1.11.2.jar:1.11.2]
> at
> java.util.concurrent.CompletableFuture.uniRun(CompletableFuture.java:705)
> ~[?:1.8.0_222]
> ... 24 more
> {code}
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