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https://issues.apache.org/jira/browse/MAPREDUCE-4334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13427128#comment-13427128
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Alejandro Abdelnur commented on MAPREDUCE-4334:
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Arun, if somebody is willing to install cgrulesengd/cgexec in the nodes then
there is no need for super-user privileges;p plus, any CE could be used
(unmodified) with a ResourceEnforcer injecting cgexec to the launcher
invocation. This has also the benefit that if we add more resource dimensions
(last bullet above), CE implementations would not need to change, only the
ResourceEnforcer. Which means, no code duplication, the cgroup configuration
logic lives once, in the ResourceEnforcer, as opposed to every CE that wants to
support cgroups. Finally, I like the fact that with the ResourceEnforcer we are
doing a clean separation of responsibilities between the ResourceEnforcer
(configures) and the ContainerExecutor (executes), IMO this separation will
simplify making improvements in each one of them without risk of mixing these 2
responsibilities.
> 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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