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https://issues.apache.org/jira/browse/YARN-2882?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14221232#comment-14221232
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Sujeet Varakhedi commented on YARN-2882:
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Is preemption idea only within the scope of an application? Can a 
guaranteed-start task result in preemption queued task of another application? 

> Introducing container types
> ---------------------------
>
>                 Key: YARN-2882
>                 URL: https://issues.apache.org/jira/browse/YARN-2882
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Konstantinos Karanasos
>
> 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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