Open Stack

A coworker and I have both had trouble recovering from failed overcloud 
deploys.  I've wiped out whatever data I can, but, even with nothing in 
the Heat Database, doing an

openstack overcloud deploy

seems to be looking for a specific Nova server by UUID:


heat resource-show 93afc25e-1ab2-4773-9949-6906e2f7c115 0

| resource_status_reason | ResourceInError: 
resources[0].resources.Controller: Went to status ERROR due 
t│·········································································································
o "Message: No valid host was found. There are not enough hosts 
available., Code: 500" | 
│·········································································································
| resource_type          | OS::TripleO::Controller


Inside the Nova log I see:


2016-06-24 21:05:06.973 15551 DEBUG nova.api.openstack.wsgi 
[req-c8a5179c-2adf-45a6-b186-7d7b29cd8f39 
bcd│·········································································································fefb36f44443ca9a8f3cfa445ab40 
ec662f250a85453cb40054f3aff49b58 - - -] Returning 404 to user: Instance 
8f9│·········································································································0c961-4609-4c9b-9d62-360a40f88eed 
could not be found. __call__ 
/usr/lib/python2.7/site-packages/nova/api/│·········································································································
openstack/wsgi.py:1070


How can I get the undercloud back to a clean state?