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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1382) NodeListManager has a memory leak, unusableRMNodesConcurrentSet is never purged
Date Mon, 28 Dec 2015 12:44:49 GMT

    [ https://issues.apache.org/jira/browse/YARN-1382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15072688#comment-15072688
] 

Rohith Sharma K S commented on YARN-1382:
-----------------------------------------

{{NodesListManager#getUnusableNodes}} never used, so {{unusableRMNodesConcurrentSet}} can
be removed.

> NodeListManager has a memory leak, unusableRMNodesConcurrentSet is never purged
> -------------------------------------------------------------------------------
>
>                 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
>            Reporter: Alejandro Abdelnur
>            Assignee: Rohith Sharma K S
>
> 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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