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