Naganarasimha G R created YARN-4425:

             Summary: Pluggable sharing policy for Partition Node Label 
                 Key: YARN-4425
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: capacity scheduler, resourcemanager
            Reporter: Naganarasimha G R
            Assignee: Naganarasimha G R

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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