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https://issues.apache.org/jira/browse/MAPREDUCE-3893?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13246398#comment-13246398
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Thomas Graves commented on MAPREDUCE-3893:
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Arun, any input on this?
On the configs - would it be better to remove the global setting and just have
this per queue, that way it would match the other queue configs. I'm not sure
if that is considered breaking api compatibility though.
> allow capacity scheduler configs maximum-applications and
> maximum-am-resource-percent configurable on a per queue basis
> -----------------------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-3893
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3893
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.0
> Reporter: Thomas Graves
> Assignee: Eric Payne
> Priority: Critical
> Attachments: MAPREDUCE-3893-1.txt
>
>
> The capacity scheduler configs for maximum-applications and
> maximum-am-resource-percent are currently configured globally and then made
> proportional to each queue based on its capacity. There are times when this
> may not work well. some exampless - if you have a queue that is running on
> uberAM jobs, the jobs a queue is running always has a small number of
> containers, and then you have the opposite where in a queue with very small
> capacity, you may want to limit the am resources even more so you don't end
> up deadlocked with all your capacity being used for app masters.
> I think we should make those configurable on a per queue basis.
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