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From "Vinod K V (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-944) Extend FairShare scheduler to fair-share memory usage in the cluster
Date Wed, 09 Sep 2009 03:39:57 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-944?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinod K V updated MAPREDUCE-944:
--------------------------------

    Status: Patch Available  (was: Open)

> Extend FairShare scheduler to fair-share memory usage in the cluster
> --------------------------------------------------------------------
>
>                 Key: MAPREDUCE-944
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-944
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: contrib/fair-share
>            Reporter: dhruba borthakur
>            Assignee: dhruba borthakur
>             Fix For: 0.21.0
>
>         Attachments: LoadManager.txt, LoadManager2.txt
>
>
> The FairShare Scheduler has an extensible LoadManager API to regulate allocating new
tasks on a particular TaskTracker. In similar lines, it would be nice if the FairShare Scheduler
can have a pluggable policy to regulate new tasks from a particular job. This will allow one
to skip scheduling tasks of a job that  is eating a large percentage of memory in the cluster,
i.e. fair-share of memory resources among jobs. 

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