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[OpenStack Infra <2091071@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.opendev.org/c/openstack/neutron/+/944636
Committed: https://opendev.org/openstack/neutron/commit/dd7c7f4b2bea8081ccd7408560068e29710f1ac0
Submitter: "Zuul (22348)"
Branch:    master

commit dd7c7f4b2bea8081ccd7408560068e29710f1ac0
Author: Rodolfo Alonso Hernandez <ralonsoh@xxxxxxxxxx>
Date:   Mon Mar 17 08:43:12 2025 +0000

    [OVN] Add ``AgentCache`` deletion test
    
    This patch adds a test for the patch [1] that fixes the
    ``AgentCache`` deletion call from the ``ChassisAgentDeleteEvent``
    event. This test avoids future regressions.
    
    [1]https://review.opendev.org/c/openstack/neutron/+/936988
    
    Closes-Bug: #2091071
    Change-Id: Iccd2d9aec131e2fea3a9cc29995dc4b867c20bb4


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/2091071

Title:
  [OVN] Exception when deleting agent

Status in neutron:
  Fix Released

Bug description:
  Call neutron API to delete ovn agent, it returns 204 but the agent
  isn't deleted. Check neutron-server.log find out there is an exception
  when deleting agent:

  ```
  2024-12-04 09:21:15.303 838 ERROR ovsdbapp.event [-] Unexpected exception in notify_loop: TypeError: unhashable type: 'list'
  2024-12-04 09:21:15.303 838 ERROR ovsdbapp.event Traceback (most recent call last):
  2024-12-04 09:21:15.303 838 ERROR ovsdbapp.event   File "/var/lib/kolla/venv/lib/python3.10/site-packages/ovsdbapp/event.py", line 177, in notify_loop
  2024-12-04 09:21:15.303 838 ERROR ovsdbapp.event     match.run(event, row, updates)
  2024-12-04 09:21:15.303 838 ERROR ovsdbapp.event   File "/var/lib/kolla/venv/lib/python3.10/site-packages/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py", line 330, in run
  2024-12-04 09:21:15.303 838 ERROR ovsdbapp.event     n_agent.AgentCache().delete([row.external_ids['delete_agent']])
  2024-12-04 09:21:15.303 838 ERROR ovsdbapp.event   File "/var/lib/kolla/venv/lib/python3.10/site-packages/neutron/plugins/ml2/drivers/ovn/agent/neutron_agent.py", line 282, in delete
  2024-12-04 09:21:15.303 838 ERROR ovsdbapp.event     del self.agents[agent_id]
  2024-12-04 09:21:15.303 838 ERROR ovsdbapp.event TypeError: unhashable type: 'list'
  2024-12-04 09:21:15.303 838 ERROR ovsdbapp.event
  2024-12-04 09:21:15.303 799 ERROR ovsdbapp.event [-] Unexpected exception in notify_loop: TypeError: unhashable type: 'list'
  2024-12-04 09:21:15.303 799 ERROR ovsdbapp.event Traceback (most recent call last):
  2024-12-04 09:21:15.303 799 ERROR ovsdbapp.event   File "/var/lib/kolla/venv/lib/python3.10/site-packages/ovsdbapp/event.py", line 177, in notify_loop
  2024-12-04 09:21:15.303 799 ERROR ovsdbapp.event     match.run(event, row, updates)
  2024-12-04 09:21:15.303 799 ERROR ovsdbapp.event   File "/var/lib/kolla/venv/lib/python3.10/site-packages/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py", line 330, in run
  2024-12-04 09:21:15.303 799 ERROR ovsdbapp.event     n_agent.AgentCache().delete([row.external_ids['delete_agent']])
  2024-12-04 09:21:15.303 799 ERROR ovsdbapp.event   File "/var/lib/kolla/venv/lib/python3.10/site-packages/neutron/plugins/ml2/drivers/ovn/agent/neutron_agent.py", line 282, in delete
  2024-12-04 09:21:15.303 799 ERROR ovsdbapp.event     del self.agents[agent_id]
  2024-12-04 09:21:15.303 799 ERROR ovsdbapp.event TypeError: unhashable type: 'list'
  ```

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