I am trying to connect to a Kerberos secured Hiveserver2 that has HA enabled. I am following the approach outlined in this Hive documentation for multi-user scenario (Pre-authenticated subject method) Multi-UserScenarios and Programmatic Login to KerberosKDC static final String JDBC_DB_URL = "jdbc:hive2://node1:2181,node2:2181,node3:2181/;serviceDiscoveryMode=zooKeeper;zooKeeperNamespace=hiveserver2;principal=hive/_HOST@<realm>;auth=kerberos;kerberosAuthType=fromSubject;"; In the service principal, I have used _HOST since the client program does not know which of the two hiveserver2 nodes is being connected to (HA configuration). According to the documentation "The _HOST@YOUR-REALM.COM value in the example above is the Kerberos principal for the host where HiveServer2 is running. The special string _HOST in the properties is replaced at run-time by the fully-qualified domain name of the host machine where the daemon is running. This requires that reverse DNS is properly working on all the hosts configured this way. Replace YOUR-REALM.COM with the name of the Kerberos realm your Hadoop cluster is in" Reverse DNS is configured on all nodes and is verified working. I am able to get hostname from IP as well as IP from hostname. Despite the efforts I could not get this connection to work. It fails with the error >>>KRBError: cTime is Sat Oct 22 09:57:54 IST 1988 593497674000 sTime is Thu Dec 14 10:01:16 IST 2017 1513225876000 suSec is 641259 error code is 7 error Message is Server not found in Kerberos database cname is username@realm.com sname is hive/_host@realm.com msgType is 30 KrbException: Server not found in Kerberos database (7) - UNKNOWN_SERVER Can someone please help me resolve this? Thanks! ... View more