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https://issues.apache.org/jira/browse/YARN-4425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15083167#comment-15083167
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Naganarasimha G R commented on YARN-4425:
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Further i tried to consider your comment ??I can understand why we need two
separate policies, maybe we can consider to merge two policies to one:
currently exclusivity of node label is just a hint, sharing policy could decide
if and how much resources could be shared from each partition??,
Hope i got the comment right ?
> 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,
> ResourceSharingPolicyForNodeLabelsPartitions-V2.pdf,
> YARN-4425.20160105-1.patch
>
>
> 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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