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Posted to yarn-issues@hadoop.apache.org by "Arun Suresh (JIRA)" <ji...@apache.org> on 2016/08/30 16:26:21 UTC
[jira] [Commented] (YARN-5593) [Umbrella] Add support for YARN
Allocation composed of multiple containers/processes
[ https://issues.apache.org/jira/browse/YARN-5593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15449450#comment-15449450 ]
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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