Step 14: Get or Create a Kerberos Principal for Each User Account
Now that Kerberos is configured and enabled on your cluster, you and every other Hadoop user must have a Kerberos principal or keytab to obtain Kerberos credentials to be allowed to access the cluster and use the Hadoop services. In the next step of this procedure, you need to create your own Kerberos principals to verify that Kerberos security is working on your cluster. If you and the other Hadoop users already have a Kerberos principal or keytab, or if your Kerberos administrator can provide them, you can skip ahead to the next step.
The following instructions explain how to create a Kerberos principal for a user account.
If you are using Active Directory
Add a new AD user account, <username>@EXAMPLE.COM for each Cloudera Manager service that should use Kerberos authentication. The password for these service accounts should be set to never expire.