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https://issues.apache.org/jira/browse/MAPREDUCE-4327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13427447#comment-13427447
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Robert Joseph Evans commented on MAPREDUCE-4327:
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Thanks Arun. The changes look good. I still want something that would allow a
task that uses almost no CPU to indicate that. I don't think float is the
correct solution, but we need something. I am fine if you want to punt on
that, but I would like to ses us mark the API as unstable until we can come up
with some sort of a solution.
I am also concerned about the addition of @Ignore to some of the tests.
> 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,
> MAPREDUCE-4327.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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