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From "Todd Lipcon (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3451) Port Fair Scheduler to MR2
Date Wed, 30 Nov 2011 06:41:40 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13159860#comment-13159860
] 

Todd Lipcon commented on MAPREDUCE-3451:
----------------------------------------

Hi Patrick. Yes, there is an AM-per-job in the current implementation. There's some folks
I know looking at bundling full workflows into a single AM, but they would still be fairly
short-lived and associated with a single submitting user.
                
> Port Fair Scheduler to MR2
> --------------------------
>
>                 Key: MAPREDUCE-3451
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3451
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: scheduler
>            Reporter: Patrick Wendell
>            Assignee: Patrick Wendell
>
> The Fair Scheduler is in widespread use today in MR1 clusters, but not yet ported to
MR2. This is to track the porting of the Fair Scheduler to MR2 and will be updated to include
design considerations and progress.

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