Fixed by https://review.opendev.org/c/openstack/neutron/+/758391
** Changed in: neutron
Status: In Progress => Fix Released
** Changed in: neutron
Importance: Undecided => Medium
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https://bugs.launchpad.net/bugs/1896203
Title:
TypeError: Cannot look up record by empty string in
check_for_igmp_snoop_support task
Status in neutron:
Fix Released
Bug description:
openstack ussuri deployment
neutron: 16.1.0
ovn: 20.06.2
ovs: 2.13.1
We are seeing the following traceback for one of maintenance tasks:
--8<--8<--8<--
2020-09-18 08:49:11.572 88 ERROR futurist.periodics
[req-036b9eae-53cf-4c55-a946-8aa2dc6697c5 - - - - -] Failed to call periodic
'neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.maintenance.DBInconsistenciesPeriodics.check_for_igmp_snoop_support'
(it runs every 600.00 seconds): TypeError: Cannot look up record by empty
string
2020-09-18 08:49:11.572 88 ERROR futurist.periodics Traceback (most recent
call last):
2020-09-18 08:49:11.572 88 ERROR futurist.periodics File
"/var/lib/kolla/venv/lib/python3.6/site-packages/futurist/periodics.py", line
293, in run
2020-09-18 08:49:11.572 88 ERROR futurist.periodics work()
2020-09-18 08:49:11.572 88 ERROR futurist.periodics File
"/var/lib/kolla/venv/lib/python3.6/site-packages/futurist/periodics.py", line
67, in __call__
2020-09-18 08:49:11.572 88 ERROR futurist.periodics return
self.callback(*self.args, **self.kwargs)
2020-09-18 08:49:11.572 88 ERROR futurist.periodics File
"/var/lib/kolla/venv/lib/python3.6/site-packages/futurist/periodics.py", line
181, in decorator
2020-09-18 08:49:11.572 88 ERROR futurist.periodics return f(*args,
**kwargs)
2020-09-18 08:49:11.572 88 ERROR futurist.periodics File
"/var/lib/kolla/venv/lib/python3.6/site-packages/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/maintenance.py",
line 551, in check_for_igmp_snoop_support
2020-09-18 08:49:11.572 88 ERROR futurist.periodics
ovn_const.MCAST_FLOOD_UNREGISTERED: value})))
2020-09-18 08:49:11.572 88 ERROR futurist.periodics File
"/usr/lib/python3.6/contextlib.py", line 88, in __exit__
2020-09-18 08:49:11.572 88 ERROR futurist.periodics next(self.gen)
2020-09-18 08:49:11.572 88 ERROR futurist.periodics File
"/var/lib/kolla/venv/lib/python3.6/site-packages/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/impl_idl_ovn.py",
line 185, in transaction
2020-09-18 08:49:11.572 88 ERROR futurist.periodics yield t
2020-09-18 08:49:11.572 88 ERROR futurist.periodics File
"/usr/lib/python3.6/contextlib.py", line 88, in __exit__
2020-09-18 08:49:11.572 88 ERROR futurist.periodics next(self.gen)
2020-09-18 08:49:11.572 88 ERROR futurist.periodics File
"/var/lib/kolla/venv/lib/python3.6/site-packages/ovsdbapp/api.py", line 119, in
transaction
2020-09-18 08:49:11.572 88 ERROR futurist.periodics del
self._nested_txns_map[cur_thread_id]
2020-09-18 08:49:11.572 88 ERROR futurist.periodics File
"/var/lib/kolla/venv/lib/python3.6/site-packages/ovsdbapp/api.py", line 69, in
__exit__
2020-09-18 08:49:11.572 88 ERROR futurist.periodics self.result =
self.commit()
2020-09-18 08:49:11.572 88 ERROR futurist.periodics File
"/var/lib/kolla/venv/lib/python3.6/site-packages/ovsdbapp/backend/ovs_idl/transaction.py",
line 62, in commit
2020-09-18 08:49:11.572 88 ERROR futurist.periodics raise result.ex
2020-09-18 08:49:11.572 88 ERROR futurist.periodics File
"/var/lib/kolla/venv/lib/python3.6/site-packages/ovsdbapp/backend/ovs_idl/connection.py",
line 122, in run
2020-09-18 08:49:11.572 88 ERROR futurist.periodics
txn.results.put(txn.do_commit())
2020-09-18 08:49:11.572 88 ERROR futurist.periodics File
"/var/lib/kolla/venv/lib/python3.6/site-packages/ovsdbapp/backend/ovs_idl/transaction.py",
line 89, in do_commit
2020-09-18 08:49:11.572 88 ERROR futurist.periodics command.run_idl(txn)
2020-09-18 08:49:11.572 88 ERROR futurist.periodics File
"/var/lib/kolla/venv/lib/python3.6/site-packages/ovsdbapp/backend/ovs_idl/command.py",
line 134, in run_idl
2020-09-18 08:49:11.572 88 ERROR futurist.periodics record =
self.api.lookup(self.table, self.record)
2020-09-18 08:49:11.572 88 ERROR futurist.periodics File
"/var/lib/kolla/venv/lib/python3.6/site-packages/ovsdbapp/backend/ovs_idl/__init__.py",
line 107, in lookup
2020-09-18 08:49:11.572 88 ERROR futurist.periodics return
self._lookup(table, record)
2020-09-18 08:49:11.572 88 ERROR futurist.periodics File
"/var/lib/kolla/venv/lib/python3.6/site-packages/ovsdbapp/backend/ovs_idl/__init__.py",
line 115, in _lookup
2020-09-18 08:49:11.572 88 ERROR futurist.periodics raise
TypeError("Cannot look up record by empty string")
2020-09-18 08:49:11.572 88 ERROR futurist.periodics TypeError: Cannot look up
record by empty string
2020-09-18 08:49:11.572 88 ERROR futurist.periodics
2020-09-18 08:49:12.015 88 INFO
neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.maintenance
[req-036b9eae-53cf-4c55-a946-8aa2dc6697c5 - - - - -] Maintenance task:
Synchronization finished (took 0.40 seconds)
--8<--8<--8<--
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