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https://issues.apache.org/jira/browse/FLINK-6682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16047627#comment-16047627
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Chesnay Schepler edited comment on FLINK-6682 at 6/13/17 9:12 AM:
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It should probably be moved to
{{StateAssignmentOperation#checkParallelismPreconditions()}}. Also, I wouldn't
log a message but throw an exception instead. We already know that the restore
will fail, so let's stop the process right there.
was (Author: zentol):
It should probably be moved to
{{StateAssignmentOperator#checkParallelismPreconditions()}}. Also, I wouldn't
log a message but throw an exception instead. We already know that the restore
will fail, so let's stop the process right there.
> Improve error message in case parallelism exceeds maxParallelism
> ----------------------------------------------------------------
>
> Key: FLINK-6682
> URL: https://issues.apache.org/jira/browse/FLINK-6682
> Project: Flink
> Issue Type: Improvement
> Components: State Backends, Checkpointing
> Affects Versions: 1.3.0, 1.4.0
> Reporter: Chesnay Schepler
>
> When restoring a job with a parallelism that exceeds the maxParallelism we're
> not providing a useful error message, as all you get is an
> IllegalArgumentException:
> {code}
> Caused by: org.apache.flink.runtime.client.JobExecutionException: Job
> execution failed
> at
> org.apache.flink.runtime.client.JobClient.awaitJobResult(JobClient.java:343)
> at
> org.apache.flink.runtime.client.JobClient.submitJobAndWait(JobClient.java:396)
> at
> org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:467)
> ... 22 more
> Caused by: java.lang.IllegalArgumentException
> at
> org.apache.flink.util.Preconditions.checkArgument(Preconditions.java:123)
> at
> org.apache.flink.runtime.checkpoint.StateAssignmentOperation.createKeyGroupPartitions(StateAssignmentOperation.java:449)
> at
> org.apache.flink.runtime.checkpoint.StateAssignmentOperation.assignAttemptState(StateAssignmentOperation.java:117)
> at
> org.apache.flink.runtime.checkpoint.StateAssignmentOperation.assignStates(StateAssignmentOperation.java:102)
> at
> org.apache.flink.runtime.checkpoint.CheckpointCoordinator.restoreLatestCheckpointedState(CheckpointCoordinator.java:1038)
> at
> org.apache.flink.runtime.checkpoint.CheckpointCoordinator.restoreSavepoint(CheckpointCoordinator.java:1101)
> at
> org.apache.flink.runtime.jobmanager.JobManager$$anonfun$org$apache$flink$runtime$jobmanager$JobManager$$submitJob$1.apply$mcV$sp(JobManager.scala:1386)
> at
> org.apache.flink.runtime.jobmanager.JobManager$$anonfun$org$apache$flink$runtime$jobmanager$JobManager$$submitJob$1.apply(JobManager.scala:1372)
> at
> org.apache.flink.runtime.jobmanager.JobManager$$anonfun$org$apache$flink$runtime$jobmanager$JobManager$$submitJob$1.apply(JobManager.scala:1372)
> at
> scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24)
> at
> scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24)
> at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:40)
> at
> akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:397)
> at
> scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
> at
> scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
> at
> scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
> at
> scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
> {code}
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