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[Terry Wilson <1965819@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Using python-ovs master, there are errors such as:

ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn [None req-81ffbcd9-59d1-498a-aea2-d57e0d515ff2 None None] OVS database connection to OVN_Southbound failed with error: ''list' object has no attribute 'acked''. Verify that the OVS and OVN services are available and that the 'ovn_nb_connection' and 'ovn_sb_connection' configuration options are correct.: AttributeError: 'list' object has no attribute 'acked'
ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn Traceback (most recent call last):
ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/impl_idl_ovn.py", line 127, in start_connection
ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn     self.ovsdb_connection.start()
ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn   File "/usr/local/lib/python3.10/site-packages/ovsdbapp/backend/ovs_idl/connection.py", line 83, in start
ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn     idlutils.wait_for_change(self.idl, self.timeout)
ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/impl_idl_ovn.py", line 53, in wait_for_change
ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn     while idl_.change_seqno == seqno and not idl_.run():
ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn   File "/opt/stack/ovs/python/ovs/db/idl.py", line 506, in run
ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn     self.__send_monitor_request()
ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn   File "/opt/stack/ovs/python/ovs/db/idl.py", line 814, in __send_monitor_request
ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn     not ConditionState.is_true(table.condition.acked)):
ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn AttributeError: 'list' object has no attribute 'acked'
ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn

ovsdbapp, neutron, and networking-ovn all directly set 'table.condition'
which is kinda-sorta not really public API. The type of this variable
changed with
https://github.com/openvswitch/ovs/commit/46d44cf3be0dbf4a44cebea3b279b3d16a326796
and there has been some breakage.

** Affects: networking-ovn
     Importance: Undecided
         Status: New

** Affects: neutron
     Importance: Undecided
         Status: New

** Affects: ovsdbapp
     Importance: Undecided
         Status: New

** Also affects: neutron
   Importance: Undecided
       Status: New

** Also affects: networking-ovn
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1965819

Title:
  list object has no attribute 'acked'

Status in networking-ovn:
  New
Status in neutron:
  New
Status in ovsdbapp:
  New

Bug description:
  Using python-ovs master, there are errors such as:

  ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn [None req-81ffbcd9-59d1-498a-aea2-d57e0d515ff2 None None] OVS database connection to OVN_Southbound failed with error: ''list' object has no attribute 'acked''. Verify that the OVS and OVN services are available and that the 'ovn_nb_connection' and 'ovn_sb_connection' configuration options are correct.: AttributeError: 'list' object has no attribute 'acked'
  ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn Traceback (most recent call last):
  ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/impl_idl_ovn.py", line 127, in start_connection
  ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn     self.ovsdb_connection.start()
  ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn   File "/usr/local/lib/python3.10/site-packages/ovsdbapp/backend/ovs_idl/connection.py", line 83, in start
  ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn     idlutils.wait_for_change(self.idl, self.timeout)
  ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/impl_idl_ovn.py", line 53, in wait_for_change
  ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn     while idl_.change_seqno == seqno and not idl_.run():
  ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn   File "/opt/stack/ovs/python/ovs/db/idl.py", line 506, in run
  ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn     self.__send_monitor_request()
  ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn   File "/opt/stack/ovs/python/ovs/db/idl.py", line 814, in __send_monitor_request
  ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn     not ConditionState.is_true(table.condition.acked)):
  ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn AttributeError: 'list' object has no attribute 'acked'
  ERROR neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.impl_idl_ovn

  ovsdbapp, neutron, and networking-ovn all directly set
  'table.condition' which is kinda-sorta not really public API. The type
  of this variable changed with
  https://github.com/openvswitch/ovs/commit/46d44cf3be0dbf4a44cebea3b279b3d16a326796
  and there has been some breakage.

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