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https://issues.apache.org/jira/browse/YARN-3857?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14621824#comment-14621824
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mujunchao commented on YARN-3857:
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thanks for your reviewing, have updated the test case, thanks!
> Memory leak in ResourceManager with SIMPLE mode
> -----------------------------------------------
>
> Key: YARN-3857
> URL: https://issues.apache.org/jira/browse/YARN-3857
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Affects Versions: 2.7.0
> Reporter: mujunchao
> Assignee: mujunchao
> Priority: Critical
> Attachments: YARN-3857-1.patch, YARN-3857-2.patch,
> hadoop-yarn-server-resourcemanager.patch
>
>
> We register the ClientTokenMasterKey to avoid client may hold an invalid
> ClientToken after RM restarts. In SIMPLE mode, we register
> Pair<ApplicationAttemptId, null> , But we never remove it from HashMap, as
> unregister only runing while in Security mode, so memory leak coming.
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