[dsawale@localhost sbin]$ ./start-dfs.sh
Starting namenodes on [localhost]
localhost: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
Starting datanodes
localhost: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
Starting secondary namenodes [localhost.localdomain]
localhost.localdomain: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
2020-03-05 13:17:11,502 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable