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From "Thomas Graves (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-3893) allow capacity scheduler configs maximum-applications and maximum-am-resource-percent configurable on a per queue basis
Date Wed, 22 Feb 2012 14:17:48 GMT
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


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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