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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4270) Limit application resource reservation on nodes for non-node/rack specific requests
Date Tue, 20 Oct 2015 00:17:27 GMT

    [ https://issues.apache.org/jira/browse/YARN-4270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14964290#comment-14964290
] 

Karthik Kambatla commented on YARN-4270:
----------------------------------------

+1

> Limit application resource reservation on nodes for non-node/rack specific requests
> -----------------------------------------------------------------------------------
>
>                 Key: YARN-4270
>                 URL: https://issues.apache.org/jira/browse/YARN-4270
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: fairscheduler
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>         Attachments: YARN-4270.1.patch, YARN-4270.2.patch, YARN-4270.3.patch, YARN-4270.4.patch,
YARN-4270.5.patch
>
>
> I has been noticed that for off-switch requests, the FairScheduler reserves resources
on all nodes. This could lead to the entire cluster being unavailable for all other applications.
> Ideally, the reservations should be on a configurable number of nodes, default 1.



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