Thanks Nitesh, this should be a mandatory steps in the doc to install multi datanode cluster with Kerberos enabled
I modified the HOSTNAME to lowercase and modified /etc/hosts and rebooted the servers.
Cloudera Manager is generating only 3 principals (hue, solr and HTTP). If I click "generate missing credentials", it says
"No roles required Kerberos credentials to be generated."
Please help what needs to be done to generate all the credentials.