Unable to set kdc cluster with different realm name

[debakanta kar]

Hi all,
I am trying to deploy a kdc cluster in master-slave configuration. We
already had a cluster on the same servers with a realm name e.g. XYZ.COM,
now i want to delete that cluster and create a new one with a realm name
ABC.COM.

 While doing this the installation fails at the database propagation step
with the following error:

Server rejected authentication (during sendauth exchange) while
authenticating to server
Service key not available

Can someone help me on this issue? My guess is i am not able to destroy the
existing cluster properly. Currently I am deleting the keytab file and
krb5kdc folder and stopping the krb5kdc and kadmin service.
--
Thanks
Debakanta Kar