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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2723) MR-279: port MAPREDUCE-2324 to mrv2
Date Wed, 27 Jul 2011 13:47:10 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13071730#comment-13071730

Tsz Wo (Nicholas), SZE commented on MAPREDUCE-2723:

> It looks like someone got the CHANGES.txt and checkin comments wrong. ...

Oops, it was my mistake.  Will fix CHANGE.txt.  Thanks Robert for pointing it out.

> MR-279: port MAPREDUCE-2324 to mrv2
> -----------------------------------
>                 Key: MAPREDUCE-2723
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2723
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>             Fix For: 0.23.0
> MRV2 currently does not take reduce disk usage into account when trying to schedule a
container.  For feature parity with the original map reduce it should be extended to allow
for disk space requests within containers along with RAM requests.  We then also need to port
MAPREDUCE-2324 to the scheduler to allow it to avoid starvation of containers that might never
get the resources that they need.

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