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From "Haibo Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6808) Allow Schedulers to return OPPORTUNISTIC containers when queues go over configured capacity
Date Thu, 13 Jul 2017 15:01:05 GMT

    [ https://issues.apache.org/jira/browse/YARN-6808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16085817#comment-16085817
] 

Haibo Chen commented on YARN-6808:
----------------------------------

I see. That totally makes sense. Thanks for the clarification.

> Allow Schedulers to return OPPORTUNISTIC containers when queues go over configured capacity
> -------------------------------------------------------------------------------------------
>
>                 Key: YARN-6808
>                 URL: https://issues.apache.org/jira/browse/YARN-6808
>             Project: Hadoop YARN
>          Issue Type: New Feature
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>         Attachments: YARN-6808.001.patch
>
>
> This is based on discussions with [~kasha] and [~kkaranasos].
> Currently, when a Queues goes over capacity, apps on starved queues must wait either
for containers to complete or for them to be pre-empted by the scheduler to get resources.
> This JIRA proposes to allow Schedulers to:
> # Allocate all containers over the configured queue capacity/weight as OPPORTUNISTIC.
> # Auto-promote running OPPORTUNISTIC containers of apps as and when their GUARANTEED
containers complete.



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