hi @araujo    the userPrincipalName of user livy is:   livy/hostname_livy_server@DOMAIN.LOCAL     the userPrincipalName of the livy-http user is:   livy-http@DOMAIN.LOCAL     running the command "kinit livy":     running the command "kinit livy-http":     running the "kinit" command with the keytab created for user livy:     running the command "kinit" with the keytab created for the user livy-http:     we've been facing this problem for months, we haven't found the solution yet. ... View more