You must restore krb5.conf, regenerate keytabs, and check Ranger and Oozie HA mode.
- Restore krb5.conf. In the backup kerberos step, the original /etc/krb5.conf file was copied to the /<path/to/am2cm-kerberos-backup>/krb5.conf.bak. You can restore them on each host using the following command. * <path/to/am2cm-kerberos-backup> defaults to /usr/am2cm/hdp-backup/kerberos cp <path/to/am2cm-kerberos-backup>/krb5.conf.bak /etc/krb5.conf If the backup kerberos step was skipped during the upgrade process, you must manually reset the krb5.conf file.
- Regenerate keytabs in Ambari UI.
- If Ranger is in HA mode, you have to manually regenerate the ranger.ha.keytab
- If Oozie is in HA mode, you have to manually regenerate the oozie.ha.keytab.