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From "Arun Suresh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7715) Update CPU and Memory cgroups params on container update as well.
Date Mon, 08 Jan 2018 19:44:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16316871#comment-16316871

Arun Suresh commented on YARN-7715:

I was thinking we introduce callbacks into the ResourceHandler modules for container update
as well
Thoughts [~miklos.szegedi@cloudera.com], [~haibo.chen], [~kkaranasos] ?

> Update CPU and Memory cgroups params on container update as well.
> -----------------------------------------------------------------
>                 Key: YARN-7715
>                 URL: https://issues.apache.org/jira/browse/YARN-7715
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Arun Suresh
> In YARN-6673 and YARN-6674, the cgroups resource handlers update the cgroups params for
the containers, based on opportunistic or guaranteed, in the *preStart* method.
> Now that YARN-5085 is in, Container executionType (as well as the cpu, memory and any
other resources) can be updated after the container has started. This means we need the ability
to change cgroups params after container start.

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