HA: Namenode not shutting down when shared edits dir is inaccessible
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                 Key: HDFS-2912
                 URL: https://issues.apache.org/jira/browse/HDFS-2912
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: name-node
    Affects Versions: HA branch (HDFS-1623)
            Reporter: Bikas Saha
            Assignee: Bikas Saha


When there is an error in shared edits dir then current policy requires the 
active name node to abort and shutdown.
Currently there is no way to shut down the name node and hence this does not 
happen even after all journals have been aborted on error. In fact the name 
node stays Active and also is not in safe mode. Ideally it should shut down, or 
at least go into safe mode or standby mode.

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