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From Steve Loughran <ste...@apache.org>
Subject Re: Namenode not listening for remote connections to port 9000
Date Fri, 13 Feb 2009 13:37:22 GMT
Michael Lynch wrote:
> Hi,
> 
> As far as I can tell I've followed the setup instructions for a hadoop 
> cluster to the letter,
> but I find that the datanodes can't connect to the namenode on port 9000 
> because it is only
> listening for connections from localhost.
> 
> In my case, the namenode is called centos1, and the datanode is called 
> centos2. They are
> centos 5.1 servers with an unmodified sun java 6 runtime.

fs.default.name takes a URL to the filesystem. such as hdfs://centos1:9000/

If the machine is only binding to localhost, that may mean DNS fun. Try 
a fully qualified name instead

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