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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-3515) Support intra-queue non-exclusive container allocation within a LeafQueue
Date Mon, 20 Apr 2015 21:42:59 GMT
Wangda Tan created YARN-3515:
--------------------------------

             Summary: Support intra-queue non-exclusive container allocation within a LeafQueue
                 Key: YARN-3515
                 URL: https://issues.apache.org/jira/browse/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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