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https://issues.apache.org/jira/browse/YARN-1382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15075705#comment-15075705
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Rohith Sharma K S commented on YARN-1382:
-----------------------------------------

thanks [~djp] for committing the patch:-)

> Remove unusableRMNodesConcurrentSet (never used) in NodeListManager to get 
> rid of memory leak
> ---------------------------------------------------------------------------------------------
>
>                 Key: YARN-1382
>                 URL: https://issues.apache.org/jira/browse/YARN-1382
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.2.0, 2.7.1, 2.6.2
>            Reporter: Alejandro Abdelnur
>            Assignee: Rohith Sharma K S
>             Fix For: 2.8.0
>
>         Attachments: 0001-YARN-1382.patch, 0002-YARN-1382.patch, 
> 0003-YARN-1382.patch
>
>
> If a node is in the unusable nodes set (unusableRMNodesConcurrentSet) and 
> never comes back, the node will be there forever.
> While the leak is not big, it gets aggravated if the NM addresses are 
> configured with ephemeral ports as when the nodes come back they come back as 
> new.
> Some related details in YARN-1343



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