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From "Uma Maheswara Rao G (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-7310) Mover can give first priority to local DN if it has target storage type available in local DN
Date Thu, 30 Oct 2014 07:04:34 GMT
Uma Maheswara Rao G created HDFS-7310:
-----------------------------------------

             Summary: Mover can give first priority to local DN if it has target storage type
available in local DN
                 Key: HDFS-7310
                 URL: https://issues.apache.org/jira/browse/HDFS-7310
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: balancer & mover
    Affects Versions: 3.0.0
            Reporter: Uma Maheswara Rao G
            Assignee: Vinayakumar B


Currently Mover logic may move blocks to any DN which had target storage type. But if the
src DN has target storage type then mover can give highest priority to local DN. If local
DN does not contains target storage type, then it can assign to any DN as the current logic
does.
  This is a thought, have not go through the code fully yet.

Thoughts?



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