Public bug reported:
I noticed in the DHCP agent logs in the CI jobs stacktraces like:
Dec 07 21:47:19.127574 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: DEBUG neutron.agent.dhcp.agent [-]
neutron.agent.dhcp.agent.DhcpAgentWithStateReport method _port_delete called
with arguments ({'port_id': 'a9f73dbf-ba95-4371-ad3d-5cd494efa71b',
'network_id': 'ab6f772f-4c97-4e6c-96d4-a1f89c6322aa', 'fixed_ips':
[{'subnet_id': 'd7c9b0d4-1abc-4475-9030-3c1513bd2874', 'ip_address':
'172.24.5.186'}, {'subnet_id': 'e398f2da-5b0d-4db1-82a4-7efb1d8905f5',
'ip_address': '2001:db8::166'}], 'priority': 6},) {} {{(pid=58100) wrapper
/usr/local/lib/python3.10/dist-packages/oslo_log/helpers.py:65}}
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: Traceback (most recent call last):
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: File
"/usr/local/lib/python3.10/dist-packages/eventlet/greenpool.py", line 88, in
_spawn_n_impl
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: func(*args, **kwargs)
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: File
"/opt/stack/neutron/neutron/agent/dhcp/agent.py", line 602, in
_process_resource_update
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: method(update.resource)
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: File
"/opt/stack/neutron/neutron/agent/dhcp/agent.py", line 75, in wrapped
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: return f(*args, **kwargs)
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: File
"/usr/local/lib/python3.10/dist-packages/oslo_log/helpers.py", line 67, in
wrapper
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: return method(*args, **kwargs)
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: File
"/opt/stack/neutron/neutron/agent/dhcp/agent.py", line 730, in _port_delete
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: self.call_driver('clean_devices', network)
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: File
"/usr/local/lib/python3.10/dist-packages/osprofiler/profiler.py", line 159, in
wrapper
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: result = f(*args, **kwargs)
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: File
"/opt/stack/neutron/neutron/agent/dhcp/agent.py", line 204, in call_driver
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: if 'segments' in network and network.segments:
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: TypeError: argument of type 'NoneType' is not
iterable
Example of such error:
https://storage.bhs.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_d8f/860270/8/check/neutron-
tempest-plugin-openvswitch/d8f61ec/controller/logs/screen-q-dhcp.txt
It don't cause job failure but should be handled in better way in the
code to avoid ugly stacktraces.
** Affects: neutron
Importance: Low
Status: Confirmed
** Tags: l3-ipam-dhcp low-hanging-fruit
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https://bugs.launchpad.net/bugs/1999388
Title:
TypeError raised in neutron-dhcp-agent
Status in neutron:
Confirmed
Bug description:
I noticed in the DHCP agent logs in the CI jobs stacktraces like:
Dec 07 21:47:19.127574 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: DEBUG neutron.agent.dhcp.agent [-]
neutron.agent.dhcp.agent.DhcpAgentWithStateReport method _port_delete called
with arguments ({'port_id': 'a9f73dbf-ba95-4371-ad3d-5cd494efa71b',
'network_id': 'ab6f772f-4c97-4e6c-96d4-a1f89c6322aa', 'fixed_ips':
[{'subnet_id': 'd7c9b0d4-1abc-4475-9030-3c1513bd2874', 'ip_address':
'172.24.5.186'}, {'subnet_id': 'e398f2da-5b0d-4db1-82a4-7efb1d8905f5',
'ip_address': '2001:db8::166'}], 'priority': 6},) {} {{(pid=58100) wrapper
/usr/local/lib/python3.10/dist-packages/oslo_log/helpers.py:65}}
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: Traceback (most recent call last):
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: File
"/usr/local/lib/python3.10/dist-packages/eventlet/greenpool.py", line 88, in
_spawn_n_impl
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: func(*args, **kwargs)
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: File
"/opt/stack/neutron/neutron/agent/dhcp/agent.py", line 602, in
_process_resource_update
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: method(update.resource)
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: File
"/opt/stack/neutron/neutron/agent/dhcp/agent.py", line 75, in wrapped
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: return f(*args, **kwargs)
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: File
"/usr/local/lib/python3.10/dist-packages/oslo_log/helpers.py", line 67, in
wrapper
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: return method(*args, **kwargs)
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: File
"/opt/stack/neutron/neutron/agent/dhcp/agent.py", line 730, in _port_delete
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: self.call_driver('clean_devices', network)
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: File
"/usr/local/lib/python3.10/dist-packages/osprofiler/profiler.py", line 159, in
wrapper
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: result = f(*args, **kwargs)
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: File
"/opt/stack/neutron/neutron/agent/dhcp/agent.py", line 204, in call_driver
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: if 'segments' in network and network.segments:
Dec 07 21:47:19.128219 nested-virt-ubuntu-jammy-ovh-bhs1-0032438036
neutron-dhcp-agent[58100]: TypeError: argument of type 'NoneType' is not
iterable
Example of such error:
https://storage.bhs.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_d8f/860270/8/check/neutron-
tempest-plugin-openvswitch/d8f61ec/controller/logs/screen-q-dhcp.txt
It don't cause job failure but should be handled in better way in the
code to avoid ugly stacktraces.
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