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From "Chengbing Liu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2997) NM keeps sending already-sent completed containers to RM until containers are removed from context
Date Fri, 09 Jan 2015 01:21:35 GMT

    [ https://issues.apache.org/jira/browse/YARN-2997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14270347#comment-14270347
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Chengbing Liu commented on YARN-2997:
-------------------------------------

Thanks [~jianhe] !

> NM keeps sending already-sent completed containers to RM until containers are removed
from context
> --------------------------------------------------------------------------------------------------
>
>                 Key: YARN-2997
>                 URL: https://issues.apache.org/jira/browse/YARN-2997
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.6.0
>            Reporter: Chengbing Liu
>            Assignee: Chengbing Liu
>             Fix For: 2.7.0
>
>         Attachments: YARN-2997.2.patch, YARN-2997.3.patch, YARN-2997.4.patch, YARN-2997.5.patch,
YARN-2997.patch
>
>
> We have seen in RM log a lot of
> {quote}
> INFO org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler: Null
container completed...
> {quote}
> It is caused by NM sending completed containers repeatedly until the app is finished.
On the RM side, the container is already released, hence {{getRMContainer}} returns null.



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