[jira] [Commented] (MAPREDUCE-7464) Make priority of mapreduce tasks configurable

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAPREDUCE-7464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18024831#comment-18024831 ] 

ASF GitHub Bot commented on MAPREDUCE-7464:
-------------------------------------------

github-actions[bot] commented on PR #6381:
URL: https://github.com/apache/hadoop/pull/6381#issuecomment-3369555314

   We're closing this stale PR because it has been open for 100 days with no activity. This isn't a judgement on the merit of the PR in any way. It's just a way of keeping the PR queue manageable.
   If you feel like this was a mistake, or you would like to continue working on it, please feel free to re-open it and ask for a committer to remove the stale tag and review again.
   Thanks all for your contribution.




> Make priority of mapreduce tasks configurable
> ---------------------------------------------
>
>                 Key: MAPREDUCE-7464
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7464
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: liu bin
>            Priority: Major
>              Labels: pull-request-available
>
> When maps and reduces run simultaneously, if resources are insufficient, reduces will be preempted.
> Because the priority of reduce is higher than map, the preempted reduces will first obtain resources when rerun, and then be preempted again, falling into a loop.
> We need to configure the priority of map higher than reduce to avoid this situation.



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