if you read my previous reply , thats exactly I told that your fs.default should be same across all the nodes more over same version of core-site.xml . to be more precies    This is used to specify the default file system it needs be set to a HDFS address. this is need for  client configuration as well so your local configuration file should include this element.   hdfs://192.168.1.200:9000/. Here 9000 denotes port on which datanode will send heartbeat to namenode   ... View more