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https://issues.apache.org/jira/browse/YARN-6668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16117454#comment-16117454
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Miklos Szegedi commented on YARN-6668:
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bq. 9) We call setCGroupFilePaths() in constructor which reads file. Can we
move that out into an init() method instead?
It just allocates File objects, they are not actually used, yet. They are more
like a path.
> Use cgroup to get container resource utilization
> ------------------------------------------------
>
> Key: YARN-6668
> URL: https://issues.apache.org/jira/browse/YARN-6668
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: nodemanager
> Affects Versions: 3.0.0-alpha3
> Reporter: Haibo Chen
> Assignee: Miklos Szegedi
> Attachments: YARN-6668.000.patch, YARN-6668.001.patch,
> YARN-6668.002.patch
>
>
> Container Monitor relies on proc file system to get container resource
> utilization, which is not as efficient as reading cgroup accounting. We
> should in NM, when cgroup is enabled, read cgroup stats instead.
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