When Hibernate logging is set to WARN (or lower), a very expensive call will be added to every Hibernate request.
https://bugzilla.redhat.com/show_bug.cgi?id=1094756
https://bugzilla.redhat.com/show_bug.cgi?id=1096043
https://hibernate.atlassian.net/browse/HHH-9174
https://plumbr.io/blog/io/how-we-accidentally-doubled-our-jdbc-traffic-with-hibernate