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From "Arun Suresh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5593) [Umbrella] Add support for YARN Allocation composed of multiple containers/processes
Date Sun, 24 Dec 2017 17:42:02 GMT

    [ https://issues.apache.org/jira/browse/YARN-5593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16302906#comment-16302906

Arun Suresh commented on YARN-5593:

[~bellflowerIH], yup - that was the idea. I currently don't have the bandwidth to contribute
code here for at least a couple of months. But I will be more than happy to review and help
get this in. Feel free to assign JIRAs to yourself if you plan to start work. [~jianhe] should
also be able to help.

> [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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