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https://issues.apache.org/jira/browse/YARN-5197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15713384#comment-15713384
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Junping Du commented on YARN-5197:
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I think the patch goes to branch-2.8 as well. Add 2.8 in fix version.

> RM leaks containers if running container disappears from node update
> --------------------------------------------------------------------
>
>                 Key: YARN-5197
>                 URL: https://issues.apache.org/jira/browse/YARN-5197
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.7.2, 2.6.4
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>             Fix For: 2.6.5, 2.7.4
>
>         Attachments: YARN-5197-branch-2.7.003.patch, 
> YARN-5197-branch-2.8.003.patch, YARN-5197.001.patch, YARN-5197.002.patch, 
> YARN-5197.003.patch
>
>
> Once a node reports a container running in a status update, the corresponding 
> RMNodeImpl will track the container in its launchedContainers map.  If the 
> node somehow misses sending the completed container status to the RM and the 
> container simply disappears from subsequent heartbeats, the container will 
> leak in launchedContainers forever and the container completion event will 
> not be sent to the scheduler.



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