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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5293) Disable preemption per queue per partition
Date Mon, 27 Jun 2016 11:51:52 GMT

    [ https://issues.apache.org/jira/browse/YARN-5293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15350860#comment-15350860

Sunil G commented on YARN-5293:

Adding to what [~Naganarasimha Garla] has mentioned and  based on the example mentioned in
the description, label A may also be used in some other queue's. So if we are disabling for
a label, then we may automatically disable preemption for some other queues automatically.
I think think we need to define the order of disabling in correct way. Do we see any other
use case advantages of disabling preemption per label? I think its better if we can carefully
look into with more usability aspects also. Else this may add more complexity for user.

> Disable preemption per queue per partition
> ------------------------------------------
>                 Key: YARN-5293
>                 URL: https://issues.apache.org/jira/browse/YARN-5293
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Jonathan Hung
> [YARN-2056|https://issues.apache.org/jira/browse/YARN-2056] added support for disabling
preemption at queue level. [YARN-2498|https://issues.apache.org/jira/browse/YARN-2498] added
support for per partition preemption. It would be useful to be able to disable preemption
per partition per queue, so that if a queue Q has access to two labels A and B, we can disable
preemption for Q in A but not in B.

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