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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6081) MapReduce should take cpu into account when doing headroom calculations
Date Wed, 10 Sep 2014 18:30:35 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14128889#comment-14128889
] 

Jason Lowe commented on MAPREDUCE-6081:
---------------------------------------

Duplicate of MAPREDUCE-5279?

> MapReduce should take cpu into account when doing headroom calculations
> -----------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6081
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6081
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: Varun Vasudev
>            Assignee: Varun Vasudev
>
> Currently the MapReduce AM only uses memory when doing headroom calculation as well calculations
about launching reducers. It would be preferable to account for CPU as well if the scheduler
on the YARN side is using CPU when scheduling. YARN-2448 lets AMs know what resources are
being considered when scheduling.



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