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Date: Sat, 7 Jul 2012 03:38:35 +0000 (UTC)
From: "Arun C Murthy (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Commented] (MAPREDUCE-4327) Enhance CS to schedule
 accounting for both memory and cpu cores
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-4327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13408556#comment-13408556 ] 

Arun C Murthy commented on MAPREDUCE-4327:
------------------------------------------

Andrew - I have an updated version of my CS patch which differs significantly. I'll post it over the weekend and you can review and provide f/b. Ok? Thanks.
                
> Enhance CS to schedule accounting for both memory and cpu cores
> ---------------------------------------------------------------
>
>                 Key: MAPREDUCE-4327
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4327
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: mrv2, resourcemanager, scheduler
>    Affects Versions: 2.0.0-alpha
>            Reporter: Arun C Murthy
>            Assignee: Arun C Murthy
>         Attachments: MAPREDUCE-4327-v2.patch, MAPREDUCE-4327-v3.patch, MAPREDUCE-4327-v4.patch, MAPREDUCE-4327-v5.patch, MAPREDUCE-4327.patch
>
>
> With YARN being a general purpose system, it would be useful for several applications (MPI et al) to specify not just memory but also CPU (cores) for their resource requirements. Thus, it would be useful to the CapacityScheduler to account for both.

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