nova/releasenotes/notes/discover-hosts-by-service-06ee20365b895127.yaml
Dan Smith 005a66d7e0 Add --by-service to discover_hosts
This allows us to discover and map compute hosts by service instead of
by compute node, which will solve a major deployment ordering problem for
people using ironic. This also allows closing a really nasty race when
doing HA of nova-compute/ironic.

Change-Id: Ie9f064cb9caf6dcba2414acb24d12b825df45fab
Closes-Bug: #1755602
2018-03-16 15:55:19 -07:00

8 lines
415 B
YAML

---
features:
- |
The nova-manage discover_hosts command now has a ``--by-service`` option which
allows discovering hosts in a cell purely by the presence of a nova-compute
binary. At this point, there is no need to use this unless you're using ironic,
as it is less efficient. However, if you are using ironic, this allows discovery
and mapping of hosts even when no ironic nodes are present.