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https://issues.apache.org/jira/browse/YARN-2497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16179674#comment-16179674
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Daniel Templeton commented on YARN-2497:
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[~leftnoteasy], it looks to me like {{NODE_LABEL_EXPRESSION_NOT_SET}} has to be
{{""}}, because it gets submitted as the label expression for the app... Unless
we want to add a bunch of checks for {{NODE_LABEL_EXPRESSION_NOT_SET}} in the
scheduler. I think the better approach would be to do the formatting when we
print the label expression. If you don't want duplicate code, we can add a
helper method.
> Changes for fair scheduler to support allocate resource respect labels
> ----------------------------------------------------------------------
>
> Key: YARN-2497
> URL: https://issues.apache.org/jira/browse/YARN-2497
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: fairscheduler
> Reporter: Wangda Tan
> Assignee: Daniel Templeton
> Attachments: YARN-2497.001.patch, YARN-2497.002.patch,
> YARN-2497.003.patch, YARN-2497.004.patch, YARN-2499.WIP01.patch
>
>
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