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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4257) Support fair-sharing option within a MR2 Capacity Scheduler queue
Date Sat, 07 Jul 2012 04:18:37 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13408568#comment-13408568
] 

Arun C Murthy commented on MAPREDUCE-4257:
------------------------------------------

The CS already supports user-sharing. Should we close this?
                
> Support fair-sharing option within a MR2 Capacity Scheduler queue
> -----------------------------------------------------------------
>
>                 Key: MAPREDUCE-4257
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4257
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: capacity-sched, mrv2
>            Reporter: Tom White
>            Assignee: Karthik Kambatla
>
> The fair scheduler can run jobs in a single pool (queue) in FIFO or fair share mode.
In FIFO mode one job runs at a time, in priority order, while in fair share mode multiple
jobs can run at the same time, and they share the capacity of the pool. This JIRA is to add
the latter feature to Capacity Scheduler as an option - the default would remain FIFO.

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