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https://issues.apache.org/jira/browse/YARN-5353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15374222#comment-15374222
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Hudson commented on YARN-5353:
------------------------------

SUCCESS: Integrated in Hadoop-trunk-Commit #10085 (See 
[https://builds.apache.org/job/Hadoop-trunk-Commit/10085/])
YARN-5353. ResourceManager can leak delegation tokens when they are 
(varunsaxena: rev 06c56ff79b4cdf82f733498d3edfa0b6e531a2db)
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/security/TestDelegationTokenRenewer.java
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/security/DelegationTokenRenewer.java


> ResourceManager can leak delegation tokens when they are shared across apps
> ---------------------------------------------------------------------------
>
>                 Key: YARN-5353
>                 URL: https://issues.apache.org/jira/browse/YARN-5353
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.7.0, 2.6.1
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>            Priority: Critical
>             Fix For: 2.8.0, 2.6.5, 2.7.4
>
>         Attachments: YARN-5353.001.patch
>
>
> Recently saw a ResourceManager go into heavy GC.  Heap dump showed that there 
> were millions of delegation tokens on the heap.  It looks like most of them 
> belonged to the appTokens map in DelegationTokenRenewer.  When an app 
> completes and tokens are removed for it, I noticed that the appTokens entry 
> for the app is not cleaned up if tokens were shared with other active apps.



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