I have installed Ambari 2.5.0 version with HDP 2.6 and added some of the services but while enabling kerberos I am facing one weird issue.
My installation is getting failed while installing the APP time line server and in the log file there is nothing coming.Everything was working fine before but suddenly it landed into this issue. Any suggestions will be appreciated.
Yes it is failing after kerberos is enabled with error message:
java.io.IOException: ixxxx:50070: Unexpected HTTP response: code=403 != 200, op=GETDELEGATIONTOKEN, message=org.apache.hadoop.security.authentication.client.AuthenticationException
ambari logged in user:admin
i have also generated ticket for HTTP with spengo keytab for admin user.
I had the same issue which was due to mixed case of hostname.
I ensured that the hostname is uniform(lower case) and restarted the server.
This fixed the issue.