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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1488) Allow containers to delegate resources to another container
Date Mon, 23 Dec 2013 21:53:51 GMT

    [ https://issues.apache.org/jira/browse/YARN-1488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13855958#comment-13855958

Arun C Murthy commented on YARN-1488:

I was thinking along the lines of a protocol such as:

Resource Request -> Resource granted -> AM then does (Launch Container or Delegate Container)
via NM which re-works cgroups if required.

We have explicitly avoided any container management directly between RM & NM in YARN i.e.
launch container or re-size container. Of course, RM can still revoke containers during preemption.
Having this done via AM is better for scale and simplicity (all of resource acquisition is
limited to AM-NM protocol).

> Allow containers to delegate resources to another container
> -----------------------------------------------------------
>                 Key: YARN-1488
>                 URL: https://issues.apache.org/jira/browse/YARN-1488
>             Project: Hadoop YARN
>          Issue Type: New Feature
>            Reporter: Arun C Murthy
> We should allow containers to delegate resources to another container. This would allow
external frameworks to share not just YARN's resource-management capabilities but also it's
workload-management capabilities.

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