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From "Carlo Curino (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-4198) CapacityScheduler locking / synchronization improvements
Date Mon, 21 Sep 2015 01:43:04 GMT
Carlo Curino created YARN-4198:

             Summary: CapacityScheduler locking / synchronization improvements
                 Key: YARN-4198
                 URL: https://issues.apache.org/jira/browse/YARN-4198
             Project: Hadoop YARN
          Issue Type: Improvement
            Reporter: Carlo Curino

In the context of YARN-4193 (which stresses the RM/CS performance) we found several performance
problems with  in the locking/synchronization of the CapacityScheduler, as well as inconsistencies
that do not normally surface (incorrect locking-order of queues protected by CS locks etc).
This JIRA proposes several refactoring that improve this.

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