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https://issues.apache.org/jira/browse/YARN-9639?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16872174#comment-16872174
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Sunil Govindan commented on YARN-9639:
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[~bibinchundatt] a quick question. is it better to have a null check on
pollTimer ?
> DecommissioningNodesWatcher cause memory leak
> ---------------------------------------------
>
> Key: YARN-9639
> URL: https://issues.apache.org/jira/browse/YARN-9639
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Bibin A Chundatt
> Assignee: Bilwa S T
> Priority: Critical
> Attachments: YARN-9639-001.patch
>
>
> Missing cancel() of Timer task in DecommissioningNodesWatcher could leak to
> memory leak.
> PollTimerTask holds the reference of rmcontext
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