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https://issues.apache.org/jira/browse/YARN-111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13486198#comment-13486198
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Todd Lipcon commented on YARN-111:
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I believe the 1.x fair scheduler does support priority in that the priority
acts as a multiplier on the weight (and thus fair share) of the job within the
pool.
> Application level priority in Resource Manager Schedulers
> ---------------------------------------------------------
>
> Key: YARN-111
> URL: https://issues.apache.org/jira/browse/YARN-111
> Project: Hadoop YARN
> Issue Type: Improvement
> Affects Versions: 2.0.1-alpha
> Reporter: nemon lou
>
> We need application level priority for Hadoop 2.0,both in FIFO scheduler and
> Capacity Scheduler.
> In Hadoop 1.0.x,job priority is supported.
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