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https://issues.apache.org/jira/browse/FLINK-1755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14370943#comment-14370943
]
Ufuk Celebi commented on FLINK-1755:
------------------------------------
BTW This was unrelated to the commit. It is a race in the release of the local
input channel.
> NullPointerException in LocalInputChannel.getNextLookAhead()
> ------------------------------------------------------------
>
> Key: FLINK-1755
> URL: https://issues.apache.org/jira/browse/FLINK-1755
> Project: Flink
> Issue Type: Bug
> Components: Distributed Runtime
> Affects Versions: 0.9
> Reporter: Robert Metzger
>
> Failed on travis, on this commit:
> https://github.com/rmetzger/flink/commit/6f78a6eaa3e783511ebe706ce508f54b91ceafb0
> and this profile {{-P!include-yarn -Dhadoop.version=2.0.0-alpha}}
> the commit ({code}[ml] [tests] Force pipelined execution of ALSITCase{code})
> is already contained.
> {code}
> -------------------------------------------------------
> T E S T S
> -------------------------------------------------------
> Running org.apache.flink.ml.feature.PolynomialBaseITCase
> Running org.apache.flink.ml.recommendation.ALSITCase
> Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 8.782 sec -
> in org.apache.flink.ml.feature.PolynomialBaseITCase
> Running org.apache.flink.ml.regression.MultipleLinearRegressionITCase
> Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 18.515 sec -
> in org.apache.flink.ml.recommendation.ALSITCase
> Tests run: 2, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 11.263 sec
> <<< FAILURE! - in
> org.apache.flink.ml.regression.MultipleLinearRegressionITCase
> testEstimationOfCubicFunction(org.apache.flink.ml.regression.MultipleLinearRegressionITCase)
> Time elapsed: 1.839 sec <<< ERROR!
> org.apache.flink.runtime.client.JobExecutionException: Job execution failed.
> at
> org.apache.flink.runtime.jobmanager.JobManager$$anonfun$receiveWithLogMessages$1.applyOrElse(JobManager.scala:295)
> at
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33)
> at
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33)
> at
> scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25)
> at
> org.apache.flink.runtime.ActorLogMessages$$anon$1.apply(ActorLogMessages.scala:37)
> at
> org.apache.flink.runtime.ActorLogMessages$$anon$1.apply(ActorLogMessages.scala:30)
> at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:118)
> at
> org.apache.flink.runtime.ActorLogMessages$$anon$1.applyOrElse(ActorLogMessages.scala:30)
> at akka.actor.Actor$class.aroundReceive(Actor.scala:465)
> at
> org.apache.flink.runtime.jobmanager.JobManager.aroundReceive(JobManager.scala:89)
> at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
> at akka.actor.ActorCell.invoke(ActorCell.scala:487)
> at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:254)
> at akka.dispatch.Mailbox.run(Mailbox.scala:221)
> at akka.dispatch.Mailbox.exec(Mailbox.scala:231)
> at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
> at
> scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.pollAndExecAll(ForkJoinPool.java:1253)
> at
> scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1346)
> at
> scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
> at
> scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
> Caused by: java.lang.RuntimeException: java.lang.NullPointerException
> at
> org.apache.flink.runtime.io.network.partition.consumer.LocalInputChannel.onNotification(LocalInputChannel.java:182)
> at
> org.apache.flink.runtime.io.network.partition.PipelinedSubpartition.finish(PipelinedSubpartition.java:116)
> at
> org.apache.flink.runtime.io.network.partition.ResultPartition.finish(ResultPartition.java:261)
> at
> org.apache.flink.runtime.execution.RuntimeEnvironment.run(RuntimeEnvironment.java:220)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.NullPointerException: null
> at
> org.apache.flink.runtime.io.network.partition.consumer.LocalInputChannel.getNextLookAhead(LocalInputChannel.java:190)
> at
> org.apache.flink.runtime.io.network.partition.consumer.LocalInputChannel.onNotification(LocalInputChannel.java:179)
> at
> org.apache.flink.runtime.io.network.partition.PipelinedSubpartition.finish(PipelinedSubpartition.java:116)
> at
> org.apache.flink.runtime.io.network.partition.ResultPartition.finish(ResultPartition.java:261)
> at
> org.apache.flink.runtime.execution.RuntimeEnvironment.run(RuntimeEnvironment.java:220)
> at java.lang.Thread.run(Thread.java:745)
> {code}
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