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From "Ming Ma (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1197) Support changing resources of an allocated container
Date Mon, 08 May 2017 22:33:04 GMT

    [ https://issues.apache.org/jira/browse/YARN-1197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16001676#comment-16001676
] 

Ming Ma commented on YARN-1197:
-------------------------------

Thanks for info [~tdbaker], [~jianhe], [~asuresh], [~kasha]! That means branch-2's fair scheduler
supports this feature and YARN-1655 can be resolved. 

> Support changing resources of an allocated container
> ----------------------------------------------------
>
>                 Key: YARN-1197
>                 URL: https://issues.apache.org/jira/browse/YARN-1197
>             Project: Hadoop YARN
>          Issue Type: Task
>          Components: api, graceful, nodemanager, resourcemanager
>    Affects Versions: 2.1.0-beta
>            Reporter: Wangda Tan
>         Attachments: YARN-1197_Design.2015.06.24.pdf, YARN-1197_Design.2015.07.07.pdf,
YARN-1197_Design.2015.08.21.pdf, YARN-1197_Design.pdf, YARN-1197 old-design-docs-patches-for-reference.zip
>
>
> The current YARN resource management logic assumes resource allocated to a container
is fixed during the lifetime of it. When users want to change a resource 
> of an allocated container the only way is releasing it and allocating a new container
with expected size.
> Allowing run-time changing resources of an allocated container will give us better control
of resource usage in application side



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