Parameter dfs.namenode.rpc-address does not get used when determining RPC 
address of NameNode
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                 Key: HDFS-2615
                 URL: https://issues.apache.org/jira/browse/HDFS-2615
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: name-node
    Affects Versions: 0.24.0
            Reporter: David Robson


When the NameNode is started it listens on two addresses. One defined by 
"dfs.namenode.servicerpc-address" and the other is derived from fs.defaultFS. 
It seems like it should check to see if "dfs.namenode.rpc-address" is set to 
match how getServiceRpcServerAddress.
I have written a patch which updates getRpcServerAddress to achieve this. This 
means you can set fs.defaultFS to hdfs://hostname/ then set 
dfs.namenode.rpc-address to 0.0.0.0:8020 and the NameNode will listen on all IP 
addresses on that machine.

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