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From "Miklos Szegedi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8427) Don't start opportunistic containers at container scheduler/finish event with over-allocation
Date Fri, 22 Jun 2018 17:24:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-8427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16520607#comment-16520607
] 

Miklos Szegedi commented on YARN-8427:
--------------------------------------

+1 LGTM. If there are no concerns, I will commit this shortly.

> Don't start opportunistic containers at container scheduler/finish event with over-allocation
> ---------------------------------------------------------------------------------------------
>
>                 Key: YARN-8427
>                 URL: https://issues.apache.org/jira/browse/YARN-8427
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager
>            Reporter: Haibo Chen
>            Assignee: Haibo Chen
>            Priority: Major
>         Attachments: YARN-8427-YARN-1011.00.patch, YARN-8427-YARN-1011.01.patch
>
>
> As discussed in YARN-8250, we can stop opportunistic containers from being launched at
container scheduler/finish events if the node is already over-allocating itself.  This can
mitigate the issue that too many opportunistic containers can be launched and then quickly
killed.



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