Seems to be caused by https://github.com/openstack/nova/commit/3bc171202163a3810fdc9bdb3bad600487625443 , which reduced the scope of exception handled and not included DBError / RemoteError exceptions.
Seems to be caused by https:/ /github. com/openstack/ nova/commit/ 3bc171202163a38 10fdc9bdb3bad60 0487625443 , which reduced the scope of exception handled and not included DBError / RemoteError exceptions.