The following is the scenario of the cross domain problem with Kerberized cluster:

1. Cluster is within realm “DEV.EXAMPLE.COM”
2. Client is outside cluster with realm “EXAMPLE.COM”
3. Connect to Impala from client machine works
4. Connect to HS2 from client machine does not work and get the following error:

java.lang.IllegalArgumentException: Illegal principal name <user>@EXAMPLE.COM: org.apache.hadoop.security.authentication.util.KerberosName$NoMatchingRule: 
No rules applied to <user>@EXAMPLE.COM
	at org.apache.hadoop.security.User.<init>(User.java:50)
	at org.apache.hadoop.security.User.<init>(User.java:43)
	at org.apache.hadoop.security.UserGroupInformation.createRemoteUser(UserGroupInformation.java:1221)
	at org.apache.hadoop.security.UserGroupInformation.createRemoteUser(UserGroupInformation.java:1205)
	at org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge$Server$TUGIAssumingProcessor.process(HadoopThriftAuthBridge.java:689)
	at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:285)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.hadoop.security.authentication.util.KerberosName$NoMatchingRule: No rules applied to <user>@EXAMPLE.COM
	at org.apache.hadoop.security.authentication.util.KerberosName.getShortName(KerberosName.java:389)
	at org.apache.hadoop.security.User.<init>(User.java:48)
	... 8 more

This is caused by HDFS not resolving the principal from cross domain to the local user in the cluster. To fix the issue, follow the steps below:

1. In Cloudera Manager go to HDFS > Configuration > search for “Trusted Kerberos Realms” > add “EXAMPLE.COM” to list
2. Firstly restart HS2
3. Confirm that we can connect to HS2 from client now
4. Restart the rest of the services

This should allow user to connect to HS2 from outside the cluster’s realm.

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