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From "Eli Collins (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-2916) HA: allow dfsadmin to refer to a particular namenode
Date Wed, 08 Feb 2012 21:27:00 GMT
HA: allow dfsadmin to refer to a particular namenode

                 Key: HDFS-2916
                 URL: https://issues.apache.org/jira/browse/HDFS-2916
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: ha
    Affects Versions: HA branch (HDFS-1623)
            Reporter: Eli Collins
            Assignee: Eli Collins

dfsadmin currently fails over like other clients, so if we you want to put a particular NN
in safemode you need to use the "fs" option and specify a host:ipcport target. Like HDFS-2808
it would be useful to be able to specify a logical namenode ID instead of an RPC addr. Since
fs is part of generic options this could potentially apply to all tools, however most tools
want to refer to the default logical namenode URI and failover like other clients.

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