This is a subordinate charm and since a recent
commit [1] it shares a list of its services with
the principal charm nova-compute, which has now
the responsibility to pause and resume services. [2]
The ceilometer-agent-compute service has a
dependency to the nova-compute service anyway, so
it is impossible for this charm to resume its
service if its principal charm nova-compute is
paused. This is what also led to errors in
ceilometer-agent's post-series-upgrade hook. This
hook attempted to resume its service although
the principal service was still paused. Removing
this logic entirely solves this issue.
Validated by running openstack-upgrade and
series-upgrade tests. [3]
[1]: https://opendev.org/openstack/charm-ceilometer-agent/commit/be45f779
[2]: https://opendev.org/openstack/charm-nova-compute/commit/8fb37dc0
[3]: https://github.com/openstack-charmers/charmed-openstack-tester
Closes-Bug: #1952882
Change-Id: Ia22b53b52b541250f7f803c6708968d75e64475c
43a2312794