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From "Miklos Szegedi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6673) Add cpu cgroup configurations for opportunistic containers
Date Fri, 05 Jan 2018 05:02:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-6673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16312476#comment-16312476

Miklos Szegedi commented on YARN-6673:

[~yangjiandan], would not that allow opportunistic containers to steal CPU cycles from guaranteed
ones by setting the vcores to arbitrary size like 512? [~haibochen], is there an upper limit
to vcores in RM?

> Add cpu cgroup configurations for opportunistic containers
> ----------------------------------------------------------
>                 Key: YARN-6673
>                 URL: https://issues.apache.org/jira/browse/YARN-6673
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Haibo Chen
>            Assignee: Miklos Szegedi
>             Fix For: 3.0.0-beta1
>         Attachments: YARN-6673.000.patch
> In addition to setting cpu.cfs_period_us on a per-container basis, we could also set
cpu.shares to 2 for opportunistic containers so they are run on a best-effort basis

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