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