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From "Miklos Szegedi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6668) Use cgroup to get container resource utilization
Date Mon, 07 Aug 2017 22:34:01 GMT

    [ 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:
--------------------------------------

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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