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https://issues.apache.org/jira/browse/YARN-4425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15046077#comment-15046077
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Naganarasimha G R commented on YARN-4425:
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[~wangda] & [~jianhe], can you share your opinion on this attached document ?

> Pluggable sharing policy for Partition Node Label resources
> -----------------------------------------------------------
>
>                 Key: YARN-4425
>                 URL: https://issues.apache.org/jira/browse/YARN-4425
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: capacity scheduler, resourcemanager
>            Reporter: Naganarasimha G R
>            Assignee: Naganarasimha G R
>         Attachments: ResourceSharingPolicyForNodeLabelsPartitions-V1.pdf
>
>
> As part of support for sharing NonExclusive Node Label partitions in 
> YARN-3214, NonExclusive partitions are shared only to Default Partitions and 
> also have fixed rule when apps in default partitions makes use of resources 
> of any NonExclusive partitions.
> There are many scenarios where in we require pluggable policy like 
> MutliTenant, Hierarchical etc.. where in each partition can determine when 
> they want to share the resources to other paritions and when other partitions 
> wants to use resources from others
> More details in the attached document.



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