Been looking into this, this is definitely a bug. The issue is because
cell conductors still need to be configured with the API database to
allow for some upcalls
https://docs.openstack.org/nova/latest/admin/cells.html#operations-
requiring-upcalls . Unless this doc is out of date?
When api_database is set it'll cause nova-conductor to check all cells
service versions.
It has in nova/utils.py
if CONF.api_database.connection is not None:
I think this check needs to be different, I'm not sure though if there
is a good way to determine if the conductor is running at api level of
cell level. The check for the api_database isn't good enough I think.
** Changed in: nova
Status: Invalid => Confirmed
--
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1971228
Title:
cell conductor tries to connect the other cells's DB when it is
started
Status in OpenStack Compute (nova):
Confirmed
Bug description:
Description
===========
We observe some nova-conductor behavior during its startup, and think
that might be not that correct, would like to see if any improvement
can be made for this.
Steps to reproduce
==================
- We have a large cellv2 setup, the nova services are running in victoria
version.
- Just start/restart nova-conductor in one cell and check logs
Actual result
=============
The conductor will try to connect other cell's DB in order to get
get_minimum_version_all_cells.
Since each cell is guarded by firewall, the connection attempt is failed and
has to wait for its timeout(60 seconds) to start the following nova-conductor
services.
This will be fine for the superconductor but the cell conductor
usually cannot reach other cell's DB. Wonder if this behavior can be
changed, or there are some other considerations behind this?
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1971228/+subscriptions
--
Mailing list: https://launchpad.net/~yahoo-eng-team
Post to : yahoo-eng-team@lists.launchpad.net
Unsubscribe : https://launchpad.net/~yahoo-eng-team
More help : https://help.launchpad.net/ListHelp
