[Hadoop-common-dev] [jira] Created: (HADOOP-2989) NameNode and JobTracker use bind address to set configuration variables.

NameNode and JobTracker use bind address to set configuration variables.
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Key: HADOOP-2989
URL: https://issues.apache.org/jira/browse/HADOOP-2989
Project: Hadoop Core
Issue Type: Bug
Components: dfs, mapred
Reporter: Raghu Angadi
Priority: Minor



e.g. in NameNode.java : {code}
// The rpc-server port can be ephemeral... ensure we have the correct info
this.nameNodeAddress = this.server.getListenerAddress();
conf.set("fs.default.name", nameNodeAddress.getHostName() + ":" + nameNodeAddress.getPort());{code}

The configuration is changed to help MiniMRCluster I think. This would not be always be correct if bind address is "0.0.0.0". See HADOOP-2974.
I suggest using "127.0.0.1" when bind address is "0.0.0.0". This is not much of an issue now since this configuration change is used only in tests I think.

Same fix might be needed for JobTracker and TaskTracker.