Incorrect configuration: namenode address dfs.namenode.rpc-address is not configured

Question

I am getting this error when I try and boot up a DataNode. From what I have read, the RPC paramters are only used for a HA configuration, which I am not setting up (I think)

Answer 1

check the core-site.xml under $HADOOP_INSTALL/etc/hadoop dir. Verify that the property fs.default.name is configured correctly