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https://issues.apache.org/jira/browse/YARN-5593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15449450#comment-15449450
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Arun Suresh commented on YARN-5593:
-----------------------------------
Moved a bunch of tasks over from YARN-4726.
> [Umbrella] Add support for YARN Allocation composed of multiple
> containers/processes
> ------------------------------------------------------------------------------------
>
> Key: YARN-5593
> URL: https://issues.apache.org/jira/browse/YARN-5593
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Arun Suresh
> Assignee: Arun Suresh
>
> Opening this to explicitly call out and track some of the ideas that were
> discussed in YARN-1040. Specifically the concept of an {{Allocation}} which
> can be used by an AM to start multiple {{Containers}} against as long as the
> sum of resources used by all containers {{fitsIn()}} the Resources leased to
> the {{Allocation}}.
> This is especially useful for AMs that might want to target certain
> operations (like upgrade / restart) on specific containers / processes within
> an Allocation without fear of losing the allocation.
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