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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1160) allow admins to force app deployment on a specific host
Date Fri, 06 Sep 2013 13:35:51 GMT

    [ https://issues.apache.org/jira/browse/YARN-1160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13760210#comment-13760210
] 

Steve Loughran commented on YARN-1160:
--------------------------------------

-Yes, and if you don't get that container it just stays in the queue -no notification to the
AM. This is about being able to force things in without that wait and irrespective of space
                
> allow admins to force app deployment on a specific host
> -------------------------------------------------------
>
>                 Key: YARN-1160
>                 URL: https://issues.apache.org/jira/browse/YARN-1160
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: resourcemanager
>    Affects Versions: 3.0.0
>            Reporter: Steve Loughran
>            Priority: Minor
>
> Currently you ask YARN to get slots on a host and it finds a slot on that machine -or,
if unavailable or there is no room, on a host nearby as far as the topology is concerned.
> People with admin rights should have the option to deploy a process on a specific host
and have it run there even if there are no free slots -and to fail if the machine is not available.
This would let you deploy admin-specific process across a cluster. 

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