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https://issues.apache.org/jira/browse/YARN-3472?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinod Kumar Vavilapalli updated YARN-3472:
------------------------------------------
    Target Version/s: 2.8.0  (was: 2.7.1)
       Fix Version/s:     (was: 2.8.0)
                      2.7.1

> Possible leak in DelegationTokenRenewer#allTokens 
> --------------------------------------------------
>
>                 Key: YARN-3472
>                 URL: https://issues.apache.org/jira/browse/YARN-3472
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Jian He
>            Assignee: Rohith
>             Fix For: 2.7.1
>
>         Attachments: 0001-YARN-3472.patch, 0002-YARN-3472.patch
>
>
> When old token is expiring and being removed, it's not removed from the 
> allTokens map, resulting in possible leak. 
> {code}
> if (t.token.getKind().equals(new Text("HDFS_DELEGATION_TOKEN"))) {
>               iter.remove();
>               t.cancelTimer();
>               LOG.info("Removed expiring token " + t);
>             }
> {code}



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