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From "Ahmed Hussein (Jira)" <j...@apache.org>
Subject [jira] [Created] (YARN-9805) Fine-grained SchedulerNode synchronization
Date Fri, 30 Aug 2019 15:05:00 GMT
Ahmed Hussein created YARN-9805:
-----------------------------------

             Summary: Fine-grained SchedulerNode synchronization
                 Key: YARN-9805
                 URL: https://issues.apache.org/jira/browse/YARN-9805
             Project: Hadoop YARN
          Issue Type: Improvement
            Reporter: Ahmed Hussein
            Assignee: Ahmed Hussein


Yarn schedulerNode and RMNode are using synchronized methods on reading and updating the resources.

Instead, use read-write reentrant locks to provide fine-grained locking and to avoid blocking
concurrent reads.



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