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From "MENG DING (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-1197) Support changing resources of an allocated container
Date Thu, 25 Jun 2015 00:20:10 GMT

     [ https://issues.apache.org/jira/browse/YARN-1197?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

MENG DING updated YARN-1197:
----------------------------
    Attachment: YARN-1197_Design.2015.06.24.pdf

The design doc has been updated based on the latest discussion and feedback from all parties.
I have added a section for NodeManager recovery as well. Some details still need to be ironed
out, which will be covered in sub-tasks. Special thanks to [~leftnoteasy] for all the valuable
suggestions offline.

> 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.2015.06.24.pdf,
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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