No total min share limitation of all pools
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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
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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