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From "Adrian Bridgett (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-9771) blockMoveWaitTime is set too high
Date Fri, 05 Feb 2016 17:51:39 GMT
Adrian Bridgett created HDFS-9771:
-------------------------------------

             Summary: blockMoveWaitTime is set too high
                 Key: HDFS-9771
                 URL: https://issues.apache.org/jira/browse/HDFS-9771
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: balancer & mover
    Affects Versions: 2.6.3
            Reporter: Adrian Bridgett
            Priority: Minor


HDFS-8824 has fixed this for 2.8.0, however I thought you may wish to consider lowering blockMoveWaitTime
in earlier versions as a quick win.

waitForMoveCompletion currently waits 30secs between checks.  Our iterations here are ~2mins
long and so this seems like quite a large time to delay (HDFS-8824 waits just 1 second but
makes other improvements as well and touched much more code).




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