Hi, I am able to achieve user impersonation with the solution provided by you. Now my spark jobs are getting stuck and keeps on running for hours after that I get an error of GSSException: Failed to find TGT to connect zeppelin host to yarn RM host.  When I removed the values from zeppelin.spark.keytab, zeppelin.spark.principal and put the values back in spark.yarn.keytab and spark.yarn.principal then my jobs run fine without any error but zeppelin impersonation fails in this case. What can I do to achieve user impersonation as well as get free from GSSException error for yarn RM. ... View more