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https://issues.apache.org/jira/browse/HDFS-4643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13616785#comment-13616785
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Hadoop QA commented on HDFS-4643:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12575776/hdfs-4643.txt
  against trunk revision .

    {color:red}-1 patch{color}.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/4161//console

This message is automatically generated.
                
> Fix flakiness in TestQuorumJournalManager
> -----------------------------------------
>
>                 Key: HDFS-4643
>                 URL: https://issues.apache.org/jira/browse/HDFS-4643
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: qjm, test
>    Affects Versions: 3.0.0, 2.0.3-alpha
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Trivial
>         Attachments: hdfs-4643.txt, hdfs-4643.txt
>
>
> TestQuorumJournalManager can occasionally fail if two consecutive test cases 
> pick the same port number for the JournalNodes. In this case, sometimes an 
> IPC client can be cached from a previous test case, and then fail when it 
> tries to make an IPC over that cached connection to the now-broken 
> connection. We need to more carefully call close() on all the QJMs to prevent 
> this.

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