I have run in to the same problem you have http://hortonworks.com/community/forums/topic/remoteexception-in-webhcat-with-hue-and-kerberos/
But just by added the user, in your case ‘tester’ to the local /etc/passwd and /etc/group did not work for me.
All of the rest of the AD/kerberos/hue/pig/hdfs/jobs and so on works.