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https://issues.apache.org/jira/browse/YARN-6582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16006781#comment-16006781
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Karthik Kambatla commented on YARN-6582:
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The patch doesn't change the behavior, hence no tests.
> FSAppAttempt demand can be updated atomically in updateDemand()
> ---------------------------------------------------------------
>
> Key: YARN-6582
> URL: https://issues.apache.org/jira/browse/YARN-6582
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Karthik Kambatla
> Assignee: Karthik Kambatla
> Attachments: YARN-6582.001.patch
>
>
> FSAppAttempt#updateDemand first sets demand to 0, and then adds up all the
> outstanding requests. Instead, we could use another variable tmpDemand to
> build the new value and atomically replace the demand.
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