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https://issues.apache.org/jira/browse/YARN-2752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14193494#comment-14193494
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Zhijie Shen commented on YARN-2752:
-----------------------------------

The fix makes sense. Currently the branch-2 code will always add "nice -n" 
argument whether the priority is using the default 0 or a user customized value.

One suggestion: maybe it's better to apply the diff between trunk and branch-2 
here. It prevents the merge failure if we modify this code on the trunk, and 
cherry pick it to branch-2 in the future.

> TestContainerExecutor.testRunCommandNoPriority fails in branch-2
> ----------------------------------------------------------------
>
>                 Key: YARN-2752
>                 URL: https://issues.apache.org/jira/browse/YARN-2752
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Xuan Gong
>            Assignee: Xuan Gong
>         Attachments: YARN-2752.1-branch-2.patch
>
>
> TestContainerExecutor.testRunCommandNoPriority fails in branch-2. But it 
> passed in trunk. 
> The function code ContainerExecutor.getRunCommand() in trunk is different 
> from that in branch-2.



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