[jira] [Commented] (YARN-1197) Support changing resources of an allocated container

["MENG DING (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-1197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14575519#comment-14575519 ] 

MENG DING commented on YARN-1197:
---------------------------------

Just an update, I am currently working on:

YARN-1449, API in NM side to support change container resource
YARN-1643, ContainerMonitor changes in NM
YARN-1510, NMClient

I will append patches and drive discussions in each ticket.

> 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, nodemanager, resourcemanager
>    Affects Versions: 2.1.0-beta
>            Reporter: Wangda Tan
>         Attachments: YARN-1197 old-design-docs-patches-for-reference.zip, YARN-1197_Design.pdf
>
>
> 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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