Looks like a problem when instantiating singleton agent cache
2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event [req-1182c635-4905-4062-a060-6e445fe25d25 - - - - -] Unexpected exception in notify_loop: ValueError: driver cannot be None 2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event Traceback (most recent call last): 2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event File "/home/zuul/src/opendev.org/openstack/neutron/.tox/dsvm-functional/lib/python3.8/site-packages/ovsdbapp/event.py", line 148, in notify_loop 2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event match.run(event, row, updates) 2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event File "/home/zuul/src/opendev.org/openstack/neutron/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py", line 333, in run 2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event n_agent.AgentCache().update(ovn_const.OVN_CONTROLLER_AGENT, row, 2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event File "/home/zuul/src/opendev.org/openstack/neutron/neutron/common/utils.py", line 941, in __call__ 2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event self._instance = self._klass(*args, **kwargs) 2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event File "/home/zuul/src/opendev.org/openstack/neutron/neutron/plugins/ml2/drivers/ovn/agent/neutron_agent.py", line 203, in __init__ 2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event raise ValueError(_("driver cannot be None")) 2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event ValueError: driver cannot be None 2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event
Looks like a problem when instantiating singleton agent cache
2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event [req-1182c635- 4905-4062- a060-6e445fe25d 25 - - - - -] Unexpected exception in notify_loop: ValueError: driver cannot be None zuul/src/ opendev. org/openstack/ neutron/ .tox/dsvm- functional/ lib/python3. 8/site- packages/ ovsdbapp/ event.py" , line 148, in notify_loop zuul/src/ opendev. org/openstack/ neutron/ neutron/ plugins/ ml2/drivers/ ovn/mech_ driver/ ovsdb/ovsdb_ monitor. py", line 333, in run AgentCache( ).update( ovn_const. OVN_CONTROLLER_ AGENT, row, zuul/src/ opendev. org/openstack/ neutron/ neutron/ common/ utils.py" , line 941, in __call__ zuul/src/ opendev. org/openstack/ neutron/ neutron/ plugins/ ml2/drivers/ ovn/agent/ neutron_ agent.py" , line 203, in __init__ _("driver cannot be None"))
2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event Traceback (most recent call last):
2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event File "/home/
2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event match.run(event, row, updates)
2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event File "/home/
2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event n_agent.
2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event File "/home/
2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event self._instance = self._klass(*args, **kwargs)
2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event File "/home/
2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event raise ValueError(
2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event ValueError: driver cannot be None
2021-11-15 15:00:09.556 52726 ERROR ovsdbapp.event