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https://issues.apache.org/jira/browse/YARN-1197?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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MENG DING updated YARN-1197:
----------------------------
Attachment: YARN-1197_Design.2015.08.21.pdf
The NodeManager side of the implementation has been completed. Many thanks to
[~jianhe] and [~leftnoteasy] for the review and valuable comments. There have
been quite a few design changes along the way (for the better!), and I have
updated the design doc accordingly. The main changes include:
* Getting rid of the {{IncreasedContainerProto}} and
{{DecreasedContainerProto}}, and just use the existing {{ContainerProto}}.
* Container resource is now updated synchronously in NM as the whole process is
fairly light weighted. This greatly simplifies the logic. The
{{ContainerManager#increaseContainersResource}} call is now a blocking call,
and a success return of this function means that the increase is completed in
NM, and no further container status checking is required by AM.
* Container resource increase is synchronized with NM-RM registration to handle
the race condition of RM restarts while container resource increase is in
progress.
> 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.2015.07.07.pdf,
> YARN-1197_Design.2015.08.21.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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