You are viewing a plain text version of this content. The canonical link for it is here.
Posted to mapreduce-issues@hadoop.apache.org by "Jason Lowe (JIRA)" <ji...@apache.org> on 2015/09/28 18:31:05 UTC
[jira] [Comment Edited] (MAPREDUCE-6492) AsyncDispatcher exit with
NPE on TaskAttemptImpl#sendJHStartEventForAssignedFailTask
[ https://issues.apache.org/jira/browse/MAPREDUCE-6492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14933527#comment-14933527 ]
Jason Lowe edited comment on MAPREDUCE-6492 at 9/28/15 4:30 PM:
----------------------------------------------------------------
Thanks for the report and patch, Bibin! Looks like this was caused by MAPREDUCE-5982, sorry for missing this in the review.
As for the patch, we don't want to check for the UNASSIGNED state explicitly, as I believe this can also happen if we transition from other states that also don't have a container, like the NEW state. Probably best to skip creating the event when launch time is zero and container is null rather than checking for explicit states.
was (Author: jlowe):
Thanks for the report and patch, Bibin! Looks like this was caused by MAPREDUCE-5982, sorry for missing this in the review.
As for the patch, we don't want to check for the UNASSIGNED state explicitly, as I believe this can also happen if we transition from other states that also don't have a container the NEW state as well. Probably best to skip creating the event when launch time is zero and container is null rather than checking for explicit states.
> AsyncDispatcher exit with NPE on TaskAttemptImpl#sendJHStartEventForAssignedFailTask
> ------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-6492
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6492
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Bibin A Chundatt
> Assignee: Bibin A Chundatt
> Priority: Critical
> Attachments: 0002-MAPREDUCE-6492.patch, MAPREDUCE-6492.patch
>
>
> For {{TaskAttemptImpl#DeallocateContainerTransition}} {{sendJHStartEventForAssignedFailTask}} is send for TaskAttemptStateInternal.UNASSIGNED also .
> Causing NPE on {{taskAttempt.container.getNodeHttpAddress()}}
> {noformat}
> 2015-09-28 18:01:48,656 FATAL [AsyncDispatcher event handler] org.apache.hadoop.yarn.event.AsyncDispatcher: Error in dispatcher thread
> java.lang.NullPointerException
> at org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl.sendJHStartEventForAssignedFailTask(TaskAttemptImpl.java:1494)
> at org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl.access$2900(TaskAttemptImpl.java:147)
> at org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl$DeallocateContainerTransition.transition(TaskAttemptImpl.java:1700)
> at org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl$DeallocateContainerTransition.transition(TaskAttemptImpl.java:1686)
> at org.apache.hadoop.yarn.state.StateMachineFactory$SingleInternalArc.doTransition(StateMachineFactory.java:362)
> at org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:302)
> at org.apache.hadoop.yarn.state.StateMachineFactory.access$3(StateMachineFactory.java:290)
> at org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:448)
> at org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl.handle(TaskAttemptImpl.java:1190)
> at org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl.handle(TaskAttemptImpl.java:146)
> at org.apache.hadoop.mapreduce.v2.app.MRAppMaster$TaskAttemptEventDispatcher.handle(MRAppMaster.java:1415)
> at org.apache.hadoop.mapreduce.v2.app.MRAppMaster$TaskAttemptEventDispatcher.handle(MRAppMaster.java:1407)
> at org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:183)
> at org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:109)
> at java.lang.Thread.run(Thread.java:745)
> 2015-09-28 18:01:48,660 INFO [AsyncDispatcher ShutDown handler] org.apache.hadoop.yarn.event.AsyncDispatcher: Exiting, bbye..
> 2015-09-28 18:01:48,660 INFO [ContainerLauncher #6] org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherImpl: Processing the event EventType: CONTAINER_REMOTE_CLEANUP for container container_e04_1443430524957_0006_01_000059 taskAttempt attempt_1443430524957_0006_m_000000_9
> {noformat}
> Log aggregation fail for mapreduce application.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)