Stop CDH Services and Stop Cloudera Manager Management Services. Import the new kerberos account. You will need an admin account on the KDC for this: CM UI -> Administration -> Security -> Kerberos credentials -> "Import Kerberos Account Manager Credentials" Enter username and password Click Import button Re-generate missing principals if the previous step was successful CM UI -> Administration -> Security -> "Kerberos credentials" Click the button "Generate Missing Credentials" Wait until credentials have been generated Start Cloudera Manager Management Services Start CDH Services ... View more

@Shelton we are still experiencing slowness in ambari UI after enabling the above properties.    ... View more