Here is my explanation:
1. According to ovn docs
https://docs.ovn.org/en/latest/intro/install/ovn-upgrades.html
"The only step required after upgrading the packages is to restart ovn-northd,
which automatically restarts the databases and upgrades the database schema, as
well.
if you’re using a
Im not sure what it means, but northd_internal_version has changed in nb
db, but not in sb db:
ovn-nbctl get nb-global . options
{mac_prefix="a6:00:79", max_tunid="16711680",
northd_internal_version="23.03.1-20.27.0-70.6",
svc_monitor_mac="ea:c9:fc:91:88:7c"}
ovn-sbctl get sb-global . options
I reinstalled host OS and rebuild it from scratch including all containers.
I reinstalled compute nodes one by one, not to overload OpenStack
Infrastructure.
I'm using venv_wheel_build_enable=False to get around.
Alternative can be to reinstall and rebuild only infra (repo, galera, rabbitmq)
one
I upgraded compute nodes first (rebuild the from scratch with new OS one by one
with VM live migrations) and controller second.
(I tried upgrading controller first and compute second before you updated
distro upgrade guide. It resulted in longer outage.)
When I upgraded 2 mgmt nodes and shutdown
Public bug reported:
After distro upgrade of the openstack-ansible 2023.1 site from Ubuntu
20.04 to Ubuntu 22.04 OVN cluster DB was not upgraded.
root@b-mgmt-neutron-ovn-northd-container-cb715707:/var/log/ovn# ovn-nbctl
--version
ovn-nbctl 23.03.1
Open vSwitch Library 3.1.2
DB Schema 7.0.0
and tons of these every 5 sec
ovn-northd.log:
2024-03-28T18:13:16.208Z|00511|ovn_northd|INFO|OVNSB commit failed, force
recompute next time.
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https://bugs.launchpad.net/bugs/2059721
