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From "Naganarasimha G R (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5726) Test exception in TestContainersMonitorResourceChange.testContainersResourceChange when trying to get NMTimelinePublisher
Date Thu, 13 Oct 2016 01:35:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-5726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15570490#comment-15570490
] 

Naganarasimha G R commented on YARN-5726:
-----------------------------------------

Hi [~miklos.szegedi@cloudera.com],
Looks like YARN-5725 and this are almost same reason that the container Id is not found, so
could you handle it in a single jira and also check the root cause why the container id is
not found ?  at first glance looks like container id on completion is getting removed from
the monitor first and then in the NMContext, so not sure about the scenario when the container
is not found and result in NPE.

> Test exception in TestContainersMonitorResourceChange.testContainersResourceChange when
trying to get NMTimelinePublisher
> -------------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-5726
>                 URL: https://issues.apache.org/jira/browse/YARN-5726
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Miklos Szegedi
>            Assignee: Miklos Szegedi
>            Priority: Trivial
>         Attachments: YARN-5726.000.patch
>
>
> 2016-10-12 14:38:39,970 WARN  [Container Monitor] monitor.ContainersMonitorImpl (ContainersMonitorImpl.java:run(594))
- Uncaught exception in ContainersMonitorImpl while monitoring resource of container_123456_0001_01_000001
> java.lang.NullPointerException
> 	at org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor.ContainersMonitorImpl$MonitoringThread.run(ContainersMonitorImpl.java:587)



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