Wangda Tan created YARN-3515:

             Summary: Support intra-queue non-exclusive container allocation 
within a LeafQueue
                 Key: YARN-3515
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Wangda Tan
            Assignee: Wangda Tan

Related to YARN-2498:

YARN-2498 addressed the problem of non-exclusive container preemption in 
inter-queue level. When a queue over-satisfied on a given partition, 
ignore_partition_exclusivity containers will be preempted first.

But it is possible that when a queue is under its guaranteed resource, there's 
pending resources for a given partition, and resources being used by 
ignore_partition_exclusivity containers. For example:
- App1/App2 in queue-A, app1 wants 30 partition=x containers and app2 uses 30 
partition=x ignore_partition-exclusivity containers. It is possible we need 
reclaim resource from app2 for partition=x.

Relation between this and YARN-2498 is similar to relation between YARN-2069 
and YARN-2113.

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