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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2055) Preemption: Jobs are failing due to AMs are getting launched and killed multiple times
Date Fri, 16 May 2014 11:20:36 GMT

    [ https://issues.apache.org/jira/browse/YARN-2055?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13999724#comment-13999724
] 

Sunil G commented on YARN-2055:
-------------------------------

Thank you Mayank for the clarification.
I have a small doubt here. In such scenarios, is it like scheduler should not assign any more
container for Queue A?
Assuming that here Queue B is demand is there, then only Queue B's requests has to be served
first. Am I correct?

> Preemption: Jobs are failing due to AMs are getting launched and killed multiple times
> --------------------------------------------------------------------------------------
>
>                 Key: YARN-2055
>                 URL: https://issues.apache.org/jira/browse/YARN-2055
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: 2.4.0
>            Reporter: Mayank Bansal
>
> If Queue A does not have enough capacity to run AM, then AM will borrow capacity from
queue B to run AM in that case AM will be killed if queue B will reclaim its capacity and
again AM will be launched and killed again, in that case job will be failed.



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