Reviewed: https://review.opendev.org/c/openstack/neutron/+/800679
Committed:
https://opendev.org/openstack/neutron/commit/e5f19a29dcfb70ea08fa39267bc4aecd44bec2eb
Submitter: "Zuul (22348)"
Branch: master
commit e5f19a29dcfb70ea08fa39267bc4aecd44bec2eb
Author: Lucas Alvares Gomes <lucasago...@gmail.com>
Date: Wed Jul 14 16:46:47 2021 +0100
[OVN] Fix ML2/OVN + Neutron DHCP agent use case
In an attempt to minimize the number of connections to the OVSDBs the
ML2/OVN driver stopped connecting to the OVN dbs if the Neutron worker
was a RpcWorker but, that introduced a regression for those using
ML2/OVN + Neutron DHCP agent (for baremetal provisioning).
Because the RpcWorker didn't have a connection to the OVN database the
Neutron DHCP agent wasn't able to create the DHCP port and failed with:
2021-07-13 13:36:18.116 17 ERROR neutron.plugins.ml2.managers if not
self._sb_ovn.chassis_exists(host):
2021-07-13 13:36:18.116 17 ERROR neutron.plugins.ml2.managers
AttributeError: 'NoneType' object has no attribute 'chassis_exists'
This patch adds the RpcWorker back to the list of workers that should
connect to the OVN databases.
Change-Id: I454f3b52376a02f6cc9ca9124083295631bd03d5
Closes-Bug: #1929633
Signed-off-by: Lucas Alvares Gomes <lucasago...@gmail.com>
** Changed in: neutron
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1929633
Title:
Mechanism driver 'ovn' failed in create_port_precommit:
AttributeError: 'NoneType' object has no attribute 'chassis_exists'
Status in neutron:
Fix Released
Bug description:
Error occurs in devstack@q-svc.
Seems this error arises after devstack 'Change default network backend driver
to ML2/OVN', https://review.opendev.org/c/openstack/devstack/+/791436
========================================
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server [None req-80ce99c0-4be0-44c1-a62d-bea8619c6471 None
None] Exception during message handling:
neutron.plugins.ml2.common.exceptions.MechanismDriverError
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server Traceback (most recent call last):
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_messaging/rpc/server.py", line
165, in _process_incoming
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server res = self.dispatcher.dispatch(message)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_messaging/rpc/dispatcher.py", line
309, in dispatch
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server return self._do_dispatch(endpoint, method, ctxt,
args)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_messaging/rpc/dispatcher.py", line
229, in _do_dispatch
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server result = func(ctxt, **new_args)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_messaging/rpc/server.py", line
241, in inner
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server return func(*args, **kwargs)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/neutron_lib/db/api.py", line 139, in
wrapped
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server setattr(e, '_RETRY_EXCEEDED', True)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_utils/excutils.py", line 227, in
__exit__
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server self.force_reraise()
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_utils/excutils.py", line 200, in
force_reraise
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server raise self.value
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/neutron_lib/db/api.py", line 135, in
wrapped
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server return f(*args, **kwargs)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_db/api.py", line 154,in wrapper
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server ectxt.value = e.inner_exc
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_utils/excutils.py", line 227, in
__exit__
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server self.force_reraise()
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_utils/excutils.py", line 200, in
force_reraise
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server raise self.value
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_db/api.py", line 142,in wrapper
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server return f(*args, **kwargs)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/neutron_lib/db/api.py", line 183, in
wrapped
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server LOG.debug("Retry wrapper got retriable exception:
%s", e)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_utils/excutils.py", line 227, in
__exit__
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server self.force_reraise()
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_utils/excutils.py", line 200, in
force_reraise
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server raise self.value
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/neutron_lib/db/api.py", line 179, in
wrapped
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server return f(*dup_args, **dup_kwargs)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/opt/stack/new/neutron/neutron/quota/resource_registry.py", line 9
5, in wrapper
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server ret_val = f(_self, context, *args, **kwargs)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/opt/stack/new/neutron/neutron/api/rpc/handlers/dhcp_rpc.py", line
295, in create_dhcp_port
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server return self._port_action(plugin, context, port,
'create_port')
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/opt/stack/new/neutron/neutron/api/rpc/handlers/dhcp_rpc.py", line
115, in _port_action
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server return p_utils.create_port(plugin, context, port)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/neutron_lib/plugins/utils.py", line
337, in create_port
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server return core_plugin.create_port(
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/opt/stack/new/neutron/neutron/common/utils.py", line 685, in inner
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server return f(self, context, *args, **kwargs)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/neutron_lib/db/api.py", line 217, in
wrapped
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server return method(*args, **kwargs)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/neutron_lib/db/api.py", line 139, in
wrapped
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server setattr(e, '_RETRY_EXCEEDED', True)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_utils/excutils.py", line 227, in
__exit__
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server self.force_reraise()
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_utils/excutils.py", line 200, in
force_reraise
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server raise self.value
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/neutron_lib/db/api.py", line 135, in
wrapped
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server return f(*args, **kwargs)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_db/api.py", line 154,
in wrapper
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server ectxt.value = e.inner_exc
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_utils/excutils.py", line 227, in
__exit__
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server self.force_reraise()
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_utils/excutils.py", line 200, in
force_reraise
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server raise self.value
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_db/api.py", line 142,in wrapper
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server return f(*args, **kwargs)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/neutron_lib/db/api.py", line 183, in
wrapped
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server LOG.debug("Retry wrapper got retriable exception:
%s", e)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_utils/excutils.py", line 227, in
__exit__
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server self.force_reraise()
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/oslo_utils/excutils.py", line 200, in
force_reraise
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server raise self.value
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/usr/local/lib/python3.8/dist-packages/neutron_lib/db/api.py", line 179, in
wrapped
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server return f(*dup_args, **dup_kwargs)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/opt/stack/new/neutron/neutron/plugins/ml2/plugin.py", line 1457,in create_port
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server result, mech_context =
self._create_port_db(context, port)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/opt/stack/new/neutron/neutron/plugins/ml2/plugin.py", line 1447,in
_create_port_db
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server
self.mechanism_manager.create_port_precommit(mech_context)
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/opt/stack/new/neutron/neutron/plugins/ml2/managers.py", line 700, in
create_port_precommit
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server self._call_on_drivers("create_port_precommit",
context,
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server File
"/opt/stack/new/neutron/neutron/plugins/ml2/managers.py", line 493, in
_call_on_drivers
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server raise ml2_exc.MechanismDriverError(May 25
22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server
neutron.plugins.ml2.common.exceptions.MechanismDriverError
May 25 22:44:50 e2e-os-pflex101 neutron-server[2801827]: ERROR
oslo_messaging.rpc.server
========================================
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