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https://issues.apache.org/jira/browse/HADOOP-15418?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16942107#comment-16942107
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Wei-Chiu Chuang commented on HADOOP-15418:
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Commit still applies in branch-3.1 and branch-3.2
I'll cherry pick it to these two branches.
> Hadoop KMSAuthenticationFilter needs to use getPropsByPrefix instead of
> iterator to avoid ConcurrentModificationException
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-15418
> URL: https://issues.apache.org/jira/browse/HADOOP-15418
> Project: Hadoop Common
> Issue Type: Bug
> Components: common
> Reporter: Suma Shivaprasad
> Assignee: Suma Shivaprasad
> Priority: Major
> Fix For: 3.3.0
>
> Attachments: HADOOP-15418.1.patch, HADOOP-15418.2.patch,
> HADOOP-15418.3.patch
>
>
> The issue is similar to what was fixed in HADOOP-15411. Fixing this in
> KMSAuthenticationFilter as well.
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