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From "Miklos Szegedi (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (YARN-6384) Add configuration property to set max CPU usage when strict-resource-usage is false with cgroups
Date Fri, 19 Jan 2018 17:34:02 GMT

     [ https://issues.apache.org/jira/browse/YARN-6384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Miklos Szegedi reassigned YARN-6384:
------------------------------------

    Assignee: dengkai

> Add configuration property to set max CPU usage when strict-resource-usage is false with
cgroups
> ------------------------------------------------------------------------------------------------
>
>                 Key: YARN-6384
>                 URL: https://issues.apache.org/jira/browse/YARN-6384
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: dengkai
>            Assignee: dengkai
>            Priority: Major
>         Attachments: YARN-6384-0.patch, YARN-6384-1.patch, YARN-6384-2.patch, YARN-6384-3.patch,
YARN-6384-4.patch, YARN-6384-5.patch
>
>
> When using cgroups on yarn, if yarn.nodemanager.linux-container-executor.cgroups.strict-resource-usage
is false, user may get very more cpu time than expected based on the vcores. There should
be a upper limit even resource-usage is not strict, just like a percentage which user can
get more than promised by vcores. I think it's important in a shared cluster.



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