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https://issues.apache.org/jira/browse/YARN-2882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15072089#comment-15072089
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Wangda Tan commented on YARN-2882:
----------------------------------

[~kasha],
No worries, since they're new APIs and in trunk only, I think we don't have to 
revert or post addendum patch, any user-facing API changes could be added to 
YARN-4335. Will review YARN-4335 and post comments.

> Add an OPPORTUNISTIC ExecutionType
> ----------------------------------
>
>                 Key: YARN-2882
>                 URL: https://issues.apache.org/jira/browse/YARN-2882
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: nodemanager
>            Reporter: Konstantinos Karanasos
>            Assignee: Konstantinos Karanasos
>             Fix For: 3.0.0
>
>         Attachments: YARN-2882-yarn-2877.001.patch, 
> YARN-2882-yarn-2877.002.patch, YARN-2882-yarn-2877.003.patch, 
> YARN-2882-yarn-2877.004.patch, YARN-2882.005.patch, yarn-2882.patch
>
>
> This JIRA introduces the notion of container types.
> We propose two initial types of containers: guaranteed-start and queueable 
> containers.
> Guaranteed-start are the existing containers, which are allocated by the 
> central RM and are instantaneously started, once allocated.
> Queueable is a new type of container, which allows containers to be queued in 
> the NM, thus their execution may be arbitrarily delayed.



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