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https://issues.apache.org/jira/browse/MAPREDUCE-4334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13421908#comment-13421908
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Andrew Ferguson commented on MAPREDUCE-4334:
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Hi Alejandro,
thanks very much for looking at the patch & for the feedback. indeed, the patch
should come with a no-op version which is enabled by default. (the current
patch simply fails to find any cgroups if they are not configured, and then
skips trying to use them.)
I will update the patch tomorrow so it continues to have a lower impact on the
codebase.
thanks,
Andrew
> Add support for CPU isolation/monitoring of containers
> ------------------------------------------------------
>
> Key: MAPREDUCE-4334
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4334
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Reporter: Arun C Murthy
> Assignee: Andrew Ferguson
> Attachments: MAPREDUCE-4334-executor-v1.patch,
> MAPREDUCE-4334-pre1.patch, MAPREDUCE-4334-pre2-with_cpu.patch,
> MAPREDUCE-4334-pre2.patch, MAPREDUCE-4334-pre3-with_cpu.patch,
> MAPREDUCE-4334-pre3.patch, MAPREDUCE-4334-v1.patch, MAPREDUCE-4334-v2.patch
>
>
> Once we get in MAPREDUCE-4327, it will be important to actually enforce
> limits on CPU consumption of containers.
> Several options spring to mind:
> # taskset (RHEL5+)
> # cgroups (RHEL6+)
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