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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4108) CapacityScheduler: Improve preemption to preempt only those containers that would satisfy the incoming request
Date Tue, 19 Jan 2016 17:05:39 GMT

    [ https://issues.apache.org/jira/browse/YARN-4108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15107012#comment-15107012
] 

Sunil G commented on YARN-4108:
-------------------------------

Thank you [~leftnoteasy] for the updated patch. I applied the patch and ran few local tests..
Looks fine, I will also now go through patch and will share the thoughts.


> CapacityScheduler: Improve preemption to preempt only those containers that would satisfy
the incoming request
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-4108
>                 URL: https://issues.apache.org/jira/browse/YARN-4108
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacity scheduler
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>         Attachments: YARN-4108-design-doc-V3.pdf, YARN-4108-design-doc-v1.pdf, YARN-4108-design-doc-v2.pdf,
YARN-4108.poc.1.patch, YARN-4108.poc.2-WIP.patch, YARN-4108.poc.3-WIP.patch
>
>
> This is sibling JIRA for YARN-2154. We should make sure container preemption is more
effective.
> *Requirements:*:
> 1) Can handle case of user-limit preemption
> 2) Can handle case of resource placement requirements, such as: hard-locality (I only
want to use rack-1) / node-constraints (YARN-3409) / black-list (I don't want to use rack1
and host\[1-3\])
> 3) Can handle preemption within a queue: cross user preemption (YARN-2113), cross applicaiton
preemption (such as priority-based (YARN-1963) / fairness-based (YARN-3319)).



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