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Posted to yarn-issues@hadoop.apache.org by "Chen He (JIRA)" <ji...@apache.org> on 2014/12/10 00:27:17 UTC

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

    [ https://issues.apache.org/jira/browse/YARN-1197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240281#comment-14240281 ] 

Chen He commented on YARN-1197:
-------------------------------

I can also contribute some time on this JIRA.

> 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
>            Assignee: Jeff Zhang
>         Attachments: mapreduce-project.patch.ver.1, tools-project.patch.ver.1, yarn-1197-scheduler-v1.pdf, yarn-1197-v2.pdf, yarn-1197-v3.pdf, yarn-1197-v4.pdf, yarn-1197-v5.pdf, yarn-1197.pdf, yarn-api-protocol.patch.ver.1, yarn-pb-impl.patch.ver.1, yarn-server-common.patch.ver.1, yarn-server-nodemanager.patch.ver.1, yarn-server-resourcemanager.patch.ver.1
>
>
> 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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