From the url http://www.datastax.com/docs/datastax_enterprise2.2/solutions/about_hadoop#connecting-to-external-addresses
"Enabling hadoop to connect to external ip addresses".
To enable remote access to hadoop we have to change core-site.xml property “fs.default.name” from file:/// to “cfs:<ip address>:<port number>.
When I do that the hadoop log file says it is deprecated, use instead “hdfs://cfs:<ip address>:<port number>”.
When I do that the hadoop log file says “…incomplete url, no host hdfs://csfs:<ip address>:<port>”.
If I leave property as file:/// it works only locally.