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From "Sandy Ryza (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2073) Fair Scheduler: Add a utilization threshold to prevent preempting resources when cluster is free
Date Fri, 23 May 2014 22:52:03 GMT

     [ https://issues.apache.org/jira/browse/YARN-2073?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sandy Ryza updated YARN-2073:
-----------------------------

    Summary: Fair Scheduler: Add a utilization threshold to prevent preempting resources when
cluster is free  (was: FairScheduler starts preempting resources even with free resources
on the cluster)

> Fair Scheduler: Add a utilization threshold to prevent preempting resources when cluster
is free
> ------------------------------------------------------------------------------------------------
>
>                 Key: YARN-2073
>                 URL: https://issues.apache.org/jira/browse/YARN-2073
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: scheduler
>    Affects Versions: 2.4.0
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>            Priority: Critical
>         Attachments: yarn-2073-0.patch, yarn-2073-1.patch, yarn-2073-2.patch, yarn-2073-3.patch,
yarn-2073-4.patch
>
>
> Preemption should kick in only when the currently available slots don't match the request.




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