Couple things: (1) The vmprofileid in vmhost table seems to point to vmprofile.id; I could be wrong. There does not seem to be a foreign key constraint there; I could delete vmprofile.id that is still being referenced.
(2) Any updates from an old issue: http://www.mail-archive.com/vcl-dev@incubator.apache.org/msg00900.html The target is ESXi 3.5 host. Thanks