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https://issues.apache.org/jira/browse/YARN-10347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17154034#comment-17154034
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Masatake Iwasaki commented on YARN-10347:
-----------------------------------------

Yes. The QA build failed on docker image creation  installing python packages. 
It seems not to be related to the patch.
{noformat}
Step 26/32 : RUN pip2 install     configparser==4.0.2     pylint==1.9.2
...
The command '/bin/sh -c pip2 install     configparser==4.0.2     pylint==1.9.2' 
returned a non-zero code: 1
ERROR: Docker failed to build yetus/hadoop:d84386ccf7a.
{noformat}

> Fix double locking in CapacityScheduler#reinitialize in branch-3.1
> ------------------------------------------------------------------
>
>                 Key: YARN-10347
>                 URL: https://issues.apache.org/jira/browse/YARN-10347
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacity scheduler
>    Affects Versions: 3.1.4
>            Reporter: Masatake Iwasaki
>            Assignee: Masatake Iwasaki
>            Priority: Critical
>         Attachments: YARN-10347-branch-3.1.001.patch
>
>
> Double locking blocks another threads in ResourceManager waiting for the lock.



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