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From "Sandy Ryza (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1003) Add a maxContainersPerNode config to the Fair Scheduler
Date Sat, 03 Aug 2013 00:21:49 GMT

    [ https://issues.apache.org/jira/browse/YARN-1003?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13728311#comment-13728311
] 

Sandy Ryza commented on YARN-1003:
----------------------------------

You would set it when you discover that you are having trouble because you are using too much
of a resource that YARN does not manage.  I do not see this as a hack, but as a useful check
given that we can't expect YARN to account for everything.  We will not make fairness decisions
based on it, so it will not be similar to bringing slots back and will not be a substitute
for using resources that already exist.

What are your concerns?  Is there undesirable behavior that you think it would encourage?
                
> Add a maxContainersPerNode config to the Fair Scheduler
> -------------------------------------------------------
>
>                 Key: YARN-1003
>                 URL: https://issues.apache.org/jira/browse/YARN-1003
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: scheduler
>    Affects Versions: 2.1.0-beta
>            Reporter: Sandy Ryza
>            Assignee: Karthik Kambatla
>


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