Jonathan Hung created YARN-6686:
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             Summary: Support for adding and removing queue mappings
                 Key: YARN-6686
                 URL: https://issues.apache.org/jira/browse/YARN-6686
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Jonathan Hung
            Assignee: Jonathan Hung


Right now capacity scheduler uses UserGroupMappingPlacementRule to determine 
queue mappings. This rule stores mappings in 
{{yarn.scheduler.capacity.queue-mappings}}. For users with a large number of 
mappings, adding or removing queue mappings becomes infeasible.

Need to come up with a way to add/remove individual mappings, for any/all 
different configured placement rules.



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