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https://issues.apache.org/jira/browse/YARN-3?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13485570#comment-13485570
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Bikas Saha commented on YARN-3:
-------------------------------
Why is mountCGroups a method in LinuxContainerExecutor code? Shouldn't
CgroupsLCEResourcesHandler completely abstract out everything about cgroups?
{code}
+ public boolean mountCgroups(List<String> cgroupKVs, String hierarchy) {
{code}
It would be really great to add more tests. This is a fairly non-trivial piece
of functionality. So having more functional tests that verify cgroups, limits,
killing etc are working as expected would help a ton in guarding against bugs
and regressions.
What will happen if we use cgroups to limit CPU but there is only 1 container
running on a machine. Will the container be able to access all the CPU until
other tasks start running?
> Add support for CPU isolation/monitoring of containers
> ------------------------------------------------------
>
> Key: YARN-3
> URL: https://issues.apache.org/jira/browse/YARN-3
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Arun C Murthy
> Assignee: Andrew Ferguson
> Attachments: mapreduce-4334-design-doc.txt,
> mapreduce-4334-design-doc-v2.txt, 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.patch, MAPREDUCE-4334-pre2-with_cpu.patch,
> MAPREDUCE-4334-pre3.patch, MAPREDUCE-4334-pre3-with_cpu.patch,
> MAPREDUCE-4334-v1.patch, MAPREDUCE-4334-v2.patch, YARN-3-lce_only-v1.patch
>
>
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