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From "Anu Engineer (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-9502) DiskBalancer : Replace Node and Data Density with Weighted Mean and Variance
Date Thu, 03 Dec 2015 18:43:10 GMT
Anu Engineer created HDFS-9502:
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             Summary: DiskBalancer : Replace Node and Data Density with Weighted Mean and
Variance
                 Key: HDFS-9502
                 URL: https://issues.apache.org/jira/browse/HDFS-9502
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Anu Engineer
            Assignee: Anu Engineer


We use notions called Data Density which are based are similar to weighted mean and variance.
Make sure that computations map directly to these concepts since it is easier to understand
them than the density as defined in Disk Balancer now.



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