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From "Arun Suresh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6828) [Umbrella] Container preemption using OPPORTUNISTIC containers
Date Sat, 15 Jul 2017 16:57:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-6828?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16088662#comment-16088662
] 

Arun Suresh commented on YARN-6828:
-----------------------------------

Opening this as an umbrella JIRA as per [~leftnoteasy]'s request.
Also created branch YARN-6828.

> [Umbrella] Container preemption using OPPORTUNISTIC containers
> --------------------------------------------------------------
>
>                 Key: YARN-6828
>                 URL: https://issues.apache.org/jira/browse/YARN-6828
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>
> This is based on discussions with [~kasha] and [~kkaranasos].
> Currently, the YARN schedulers selects containers for preemption only in response to
a starved queue / app's request. We propose to allow the Schedulers to mark containers that
are allocated over queue capacity/fair-share as Opportunistic containers.
> 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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