Prior to installing Kerberos on Cloudera Manager, you must collect the details from the Kerberos installation in Ambari.
Collect the values for the following settings:
KDC Type (AD, MIT KDC, Redhat IPA)
Admin Account Username
Admin Account Password
KDC Admin Host
Service Port (if non standard)
Encryption Type (default ‘rc4-hmac’)
AD Directory Suffix
Cloudera Manager maintains a single principal for all the roles in a service. Hence Auth_to_local rules are not migrated.
Service user names in Ambari will be migrated to Kerberos principal names in Cloudera manager as part of the transition process.