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https://issues.apache.org/jira/browse/YARN-3547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14531225#comment-14531225
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Vinod Kumar Vavilapalli commented on YARN-3547:
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[~leftnoteasy] / [~xinxianyin], can we not use
SchedulerApplicationAttempt.hasPendingResourceRequest() the way CS's LeafQueue
uses it?
> FairScheduler: Apps that have no resource demand should not participate
> scheduling
> ----------------------------------------------------------------------------------
>
> Key: YARN-3547
> URL: https://issues.apache.org/jira/browse/YARN-3547
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: fairscheduler
> Reporter: Xianyin Xin
> Assignee: Xianyin Xin
> Labels: BB2015-05-TBR
> Attachments: YARN-3547.001.patch, YARN-3547.002.patch,
> YARN-3547.003.patch, YARN-3547.004.patch
>
>
> At present, all of the 'running' apps participate the scheduling process,
> however, most of them may have no resource demand on a production cluster, as
> the app's status is running other than waiting for resource at the most of
> the app's lifetime. It's not a wise way we sort all the 'running' apps and
> try to fulfill them, especially on a large-scale cluster which has heavy
> scheduling load.
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