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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4334) Add support for CPU isolation/monitoring of containers
Date Wed, 01 Aug 2012 22:29:04 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13426961#comment-13426961
] 

Arun C Murthy commented on MAPREDUCE-4334:
------------------------------------------

Thanks tucu, this is getting close.

Please help me understand if the following (simpler) proposal will work:

# NM calls LCE.launchContainer with the cpu-set.
# LCE will create the necessary cgroup if necessary
# LCE will launch the process within the cgroup

Pros: This way, we avoid new interfaces such as ResourceEnforcer and we can also use taskset
if necessary. Taskset should also work for DefaultContianerExecutor.

Thoughts?




                
> 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-executor-v2.patch,
MAPREDUCE-4334-executor-v3.patch, MAPREDUCE-4334-executor-v4.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, mapreduce-4334-design-doc-v2.txt,
mapreduce-4334-design-doc.txt
>
>
> 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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