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https://issues.apache.org/jira/browse/YARN-3472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14493080#comment-14493080
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Jian He commented on YARN-3472:
-------------------------------
+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
> 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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