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From "Ashwin Shankar (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-2162) Fair Scheduler :ability to configure minResources and maxResources in terms of percentage
Date Sun, 15 Jun 2014 19:01:02 GMT
Ashwin Shankar created YARN-2162:
------------------------------------

             Summary: Fair Scheduler :ability to configure minResources and maxResources in
terms of percentage
                 Key: YARN-2162
                 URL: https://issues.apache.org/jira/browse/YARN-2162
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: scheduler
            Reporter: Ashwin Shankar


minResources and maxResources in fair scheduler configs are expressed in terms of absolute
numbers X mb, Y vcores. 
As a result, when we expand or shrink our hadoop cluster, we need to recalculate and change
minResources/maxResources accordingly, which is pretty inconvenient.
We can circumvent this problem if we can (optionally) configure these properties in terms
of percentage of cluster capacity. 



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