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From "Sandy Ryza (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-616) Support guaranteed shares in the fair scheduler
Date Thu, 25 Apr 2013 23:16:15 GMT

    [ https://issues.apache.org/jira/browse/YARN-616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13642361#comment-13642361
] 

Sandy Ryza commented on YARN-616:
---------------------------------

Currently, minimum shares in the fair scheduler will go to other queues if they are unused.
 This means that, even with preemption, it can take some time for a queue to get the minimum
resources it deserves.
                
> Support guaranteed shares in the fair scheduler
> -----------------------------------------------
>
>                 Key: YARN-616
>                 URL: https://issues.apache.org/jira/browse/YARN-616
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: scheduler
>    Affects Versions: 2.0.3-alpha
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>
> A common requested feature in the fair scheduler is to reserve shares of the cluster
for queues that no other queue can trample on, even if they are unused.

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