Hadoop NameNode Ip Address

Question

I'm using Hadoop MapReduce paradigm, and i need to get the NameNode IP address from the DataNode, can any one give me an idea how to do this?

Thanks.

Answer 1

Easiest way would be to quickly open the core-site.xml file under HADOOP_HOME/conf directory. The value of fs.default.name property will tell you the host and port where NN is running.