[jira] Resolved: (MAPREDUCE-532) Allow admins of the Capacity Scheduler to set a hard-limit on the capacity of a queue

["Hemanth Yamijala (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-532?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hemanth Yamijala resolved MAPREDUCE-532.
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       Resolution: Fixed
    Fix Version/s: 0.21.0
         Assignee: rahul k singh
     Release Note: Provided ability in the capacity scheduler to limit the number of slots that can be concurrently used per queue at any given time.
     Hadoop Flags: [Reviewed]

I just committed this to trunk. Thanks, Rahul !

> Allow admins of the Capacity Scheduler to set a hard-limit on the capacity of a queue
> -------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-532
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-532
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: contrib/capacity-sched
>            Reporter: Rajiv Chittajallu
>            Assignee: rahul k singh
>             Fix For: 0.21.0
>
>         Attachments: MAPREDUCE-532-1.patch, MAPREDUCE-532-2.patch, MAPREDUCE-532-3.patch, MAPREDUCE-532-4.patch, MAPREDUCE-532-5.patch, MAPREDUCE-532-6.patch, MAPREDUCE-532-7.patch
>
>
> For jobs which call external services, (eg: distcp, crawlers) user/admin should be able to control max parallel tasks spawned. There should be a mechanism to cap the capacity available for a queue/job. 

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