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From "Ashwin Shankar (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-2394) Fair Scheduler : ability to configure fairSharePreemptionThreshold per queue
Date Thu, 07 Aug 2014 17:50:12 GMT
Ashwin Shankar created YARN-2394:
------------------------------------

             Summary: Fair Scheduler : ability to configure fairSharePreemptionThreshold per
queue
                 Key: YARN-2394
                 URL: https://issues.apache.org/jira/browse/YARN-2394
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: fairscheduler
            Reporter: Ashwin Shankar


Preemption based on fair share starvation happens when usage of a queue is less than 50% of
its fair share. This 50% is hardcoded. We'd like to make this configurable on a per queue
basis, so that we can choose the threshold at which we want to preempt. Calling this config
"fairSharePreemptionThreshold". 



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