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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (YARN-2113) Add cross-user preemption within CapacityScheduler's leaf-queue
Date Fri, 10 Mar 2017 02:48:38 GMT

    [ https://issues.apache.org/jira/browse/YARN-2113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15903442#comment-15903442
] 

Sunil G edited comment on YARN-2113 at 3/10/17 2:48 AM:
--------------------------------------------------------

Attaching v0 patch for user-limit preemption.

This patch is done on top of YARN-2009 where we have already done intra-queue preemption framework.
This patch focus on adding support to do user-limit preemption if any  user is under-served,
and if some other users are abusing the limit.

Basic test cases are added from preemption module. However I will be adding some more test
cases from scheduler side to ensure that UL computation is also correct.

[~leftnoteasy] and [~eepayne], please help to share some early feedback.


was (Author: sunilg):
Attaching v0 patch for user-limit preemption.

This patch is done on top of YARN-2009 where we have already done intra-queue preemption framework.
This patch focus on adding support to do user-limit preemption if any is used is under-served,
and some other users are abusing the limit.

Basic test cases are added from preemption module. However I will be adding some more test
cases from scheduler side to ensure that UL computation is also correct.

[~leftnoteasy] and [~eepayne], please help to share some early feedback.

> Add cross-user preemption within CapacityScheduler's leaf-queue
> ---------------------------------------------------------------
>
>                 Key: YARN-2113
>                 URL: https://issues.apache.org/jira/browse/YARN-2113
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: scheduler
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-2113.v0.patch
>
>
> Preemption today only works across queues and moves around resources across queues per
demand and usage. We should also have user-level preemption within a queue, to balance capacity
across users in a predictable manner.



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