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https://issues.apache.org/jira/browse/YARN-4335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15066419#comment-15066419
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Konstantinos Karanasos commented on YARN-4335:
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[~asuresh], [~kasha], I reopened this issue and attached a patch.
Please give it a look whenever you can.
> Allow ResourceRequests to specify ExecutionType of a request ask
> ----------------------------------------------------------------
>
> Key: YARN-4335
> URL: https://issues.apache.org/jira/browse/YARN-4335
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: nodemanager, resourcemanager
> Reporter: Konstantinos Karanasos
> Assignee: Konstantinos Karanasos
> Attachments: YARN-4335-yarn-2877.001.patch
>
>
> YARN-2882 introduced container types that are internal (not user-facing) and
> are used by the ContainerManager during execution at the NM.
> With this JIRA we are introducing (user-facing) resource request types that
> are used by the AM to specify the type of the ResourceRequest.
> We will initially support two resource request types: CONSERVATIVE and
> OPTIMISTIC.
> CONSERVATIVE resource requests will be handed internally to containers of
> GUARANTEED type, whereas OPTIMISTIC resource requests will be handed to
> QUEUEABLE containers.
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