Hello,   Check your name node address in core-site.xml. Change to 50070 or 9000 and try The default address of namenode web UI is http://localhost:50070/. You can open this address in your browser and check the namenode information. The default address of namenode server is hdfs://localhost:8020/. You can connect to it to access HDFS by HDFS api. The is the real service address. ... View more