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https://issues.apache.org/jira/browse/FLINK-8948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16400467#comment-16400467
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Aljoscha Krettek commented on FLINK-8948:
-----------------------------------------
[~NicoK] & [~pnowojski] Seems like the network stack could be involved.
> RescalingITCase fails on Travis
> -------------------------------
>
> Key: FLINK-8948
> URL: https://issues.apache.org/jira/browse/FLINK-8948
> Project: Flink
> Issue Type: Improvement
> Components: State Backends, Checkpointing, Tests, Travis
> Affects Versions: 1.5.0
> Reporter: Chesnay Schepler
> Priority: Blocker
> Fix For: 1.5.0
>
>
> https://travis-ci.org/apache/flink/jobs/353468272
> {code}
> testSavepointRescalingInKeyedStateDerivedMaxParallelism[0](org.apache.flink.test.checkpointing.RescalingITCase)
> Time elapsed: 1.858 sec <<< ERROR!
> org.apache.flink.runtime.client.JobExecutionException: Job execution failed.
> at
> org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$6.apply$mcV$sp(JobManager.scala:891)
> at
> org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$6.apply(JobManager.scala:834)
> at
> org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$6.apply(JobManager.scala:834)
> at
> scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24)
> at
> scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24)
> at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:39)
> at
> akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:415)
> at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
> at
> scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
> at
> scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
> at
> scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
> Caused by: java.lang.IllegalStateException: null
> at
> org.apache.flink.util.Preconditions.checkState(Preconditions.java:179)
> at
> org.apache.flink.runtime.io.network.buffer.BufferBuilder.finish(BufferBuilder.java:105)
> at
> org.apache.flink.runtime.io.network.api.writer.RecordWriter.closeBufferBuilder(RecordWriter.java:218)
> at
> org.apache.flink.runtime.io.network.api.writer.RecordWriter.clearBuffers(RecordWriter.java:178)
> at
> org.apache.flink.streaming.runtime.io.StreamRecordWriter.close(StreamRecordWriter.java:99)
> at
> org.apache.flink.streaming.runtime.io.RecordWriterOutput.close(RecordWriterOutput.java:161)
> at
> org.apache.flink.streaming.runtime.tasks.OperatorChain.releaseOutputs(OperatorChain.java:239)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:402)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:703)
> at java.lang.Thread.run(Thread.java:748)
> {code}
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