[jira] [Commented] (YARN-5085) Add support for change of container ExecutionType

["Karthik Kambatla (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-5085?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15285930#comment-15285930 ] 

Karthik Kambatla commented on YARN-5085:
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Are you proposing the AM be able to change the type in a previous ResourceRequest? Or, modifying the execution type of a running container? Shouldn't the latter be solely at the discretion of RM/NM ensemble - I see the need for a promotion, why would we want to demote? Will that be to continue running even after being preempted? 

> Add support for change of container ExecutionType
> -------------------------------------------------
>
>                 Key: YARN-5085
>                 URL: https://issues.apache.org/jira/browse/YARN-5085
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>
> YARN-2882 introduced the concept of {{ExecutionType}} for containers and it also introduced the concept of OPPORTUNISTIC ExecutionType.
> YARN-4335 introduced changes to the ResourceRequest so that AMs may request that the Container allocated against the ResourceRequest is of a particular {{ExecutionType}}.
> This JIRA proposes to provide support for the AM to change the ExecutionType of a previously requested Container.



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