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https://issues.apache.org/jira/browse/MAPREDUCE-2393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14534286#comment-14534286
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Mohammad Shahid Khan commented on MAPREDUCE-2393:
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MRV2 architecture is now changed and as per current scenario looks like invalid
issue.
> No total min share limitation of all pools
> ------------------------------------------
>
> Key: MAPREDUCE-2393
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2393
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/fair-share
> Affects Versions: 0.21.0
> Reporter: Denny Ye
> Labels: BB2015-05-TBR, fair, scheduler
> Attachments: MAPREDUCE-2393.patch
>
>
> hi, there is no limitation about min share of all pools with cluster total
> shares. User can define arbitrary amount of min share for each pool. It has
> such description in <fair scheduler design document>, but no regular code.
> It may critical for slot distribution. One pool can hold all cluster slots to
> meet it's min share that greater than cluster total slots very much.
> If that case has happened, we should scaled down proportionally.
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