ranger error RangerServiceNotFoundException

Dear experts,I am running HDP 2.6.4. Recently i have installed Ranger and integrated Hive. When i am trying to change Ambari Cluster Name and Ranger Hive Service Name, i am receiving the below errors in the hiveserver2.log. Could you please help ? 

'cluster1' is the original cluster name,I want to change the cluster name to a different name.

ERROR [Thread-13]: util.PolicyRefresher(PolicyRefresher.java:loadPolicyfromPolicyAdmin(285)) - PolicyRefresher(serviceName=cluster1_hive): failed to find service. Will clean up local cache of policies (-1)
org.apache.ranger.plugin.util.RangerServiceNotFoundException: cluster1_hive