When upgrading to 3.0.1 from 2.6.5 from Ambari I am getting following error message
An internal system exception occurred: Unable to build keytab regeneration stage
Where should I look for exception error?
Tried restarting KDC but of no help.
After some investigation foend that
KDC Administrator Credentials to the Ambari Credential Store was not properly set.
Then set it from Ambari and it started to work