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https://issues.apache.org/jira/browse/MAPREDUCE-7274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17116482#comment-17116482
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Chengwei Wang edited comment on MAPREDUCE-7274 at 5/26/20, 7:23 AM:
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delete unavailable patch for branch 3.2.0
upload patch for trunk. [^MAPREDUCE-7274.patch]
was (Author: smarthan):
delte patch for branch 3.2.0, and upload patch for trunk.
[^MAPREDUCE-7274.patch]
> Enable to limit running map and reduce tasks when job is running
> ----------------------------------------------------------------
>
> Key: MAPREDUCE-7274
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7274
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: mr-am, mrv2
> Reporter: Chengwei Wang
> Priority: Major
> Attachments: MAPREDUCE-7274.patch
>
>
> MRv2 enabled users to control the number of map or reduce tasks running
> simultaneously by configuration *_mapreduce.job.running.map.limit_* or
> _*mapreduce.job.running.reduce.limit*._ But users can only set limit number
> before submitting the job to rm. So, it's meaningful to enable users to set
> the limit of running map or reduce tasks when job is running, which can help
> users to restrict resource usage of job and give resources to high-priority
> job.
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