Updated openstack/openstack
Project: openstack/nova  3c5d66a977357dd22396f37d49de71039e5a7e4e
null
Make service workers gracefully handle service creation race

Right now, service workers can race to create their service record
in the database. This makes a NotFound...Exists pattern not fail
when the service record shows up due to a successful sibling.

Change-Id: I3e912beeb953c85189f44171d958e9402abc01ae