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From "Lin Yiqun (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-9685) StopDecommission for datanode should remove the underReplicatedBlocks
Date Fri, 22 Jan 2016 13:22:39 GMT
Lin Yiqun created HDFS-9685:
-------------------------------

             Summary: StopDecommission for datanode should remove the underReplicatedBlocks
                 Key: HDFS-9685
                 URL: https://issues.apache.org/jira/browse/HDFS-9685
             Project: Hadoop HDFS
          Issue Type: Bug
    Affects Versions: 2.7.1
            Reporter: Lin Yiqun
            Assignee: Lin Yiqun


When one node removed from exclude file, and its state from decommission-in-progress to in
service. But the underReplicatedBlocksNum of cluster has not been decreased. Most of these
underReplicatedBlocks are not needed and it will costs namenode much time to deal with. And
frequently namenode will find there are enough replications. So in {{stopDecommissioned}}
operation, we should remove neededReplicatedBlocks of decomNodes.



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