Comment 0 for bug 1953510

After restart of current OVN SB_DB leader, neutron_ovn_metadata_agent reconnects to new SB_DB leader, according agent`s logs.
But then, during spawn of new instances, they don`t obtain metadata from nova.
Metadata agent don`t create any ovn namespaces and related ports, there are no any errors or other info in agent`s log.
As WA, this issue can be resolved by restarting of neutron_ovn_metadata_agent.

How to reproduce it:
Restart OVN SB_DB leader and try to spawn new openstack instance.

Environment:
Openstack is deployed by kolla-ansible (v12.2.0)
Docker - 20.10.8
Container types - ubuntu/binary

Version:
* OS: Ubuntu 20.04.3 LTS
* Kernel: 5.4.0-89-generic
* Openstack version: wallaby
* Neutron: 18.1.1
* OVS: 2.15.0
* OVN: 20.12.0