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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-11034) Provide a command line tool to clear decommissioned DataNode information from the NameNode without restarting.
Date Wed, 19 Oct 2016 17:33:59 GMT
Chris Nauroth created HDFS-11034:
------------------------------------

             Summary: Provide a command line tool to clear decommissioned DataNode information
from the NameNode without restarting.
                 Key: HDFS-11034
                 URL: https://issues.apache.org/jira/browse/HDFS-11034
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: namenode
            Reporter: Chris Nauroth


Information about decommissioned DataNodes remains tracked in the NameNode for the entire
NameNode process lifetime.  Currently, the only way to clear this information is to restart
the NameNode.  This issue proposes to add a way to clear this information online, without
requiring a process restart.



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