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[Bug 2064778] Re: The ML2/OVN OVSDB maintenance job fails to handle properly user defined flavor routers gateway ports

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Reviewed:  https://review.opendev.org/c/openstack/neutron/+/918151
Committed: https://opendev.org/openstack/neutron/commit/466b0f497874947999134cc34c3e01abf7d2a31b
Submitter: "Zuul (22348)"
Branch:    master

commit 466b0f497874947999134cc34c3e01abf7d2a31b
Author: Miguel Lavalle <mlavalle@xxxxxxxxxx>
Date:   Fri May 3 19:04:19 2024 -0500

    Fix ML2/OVN OVSDB handling of gateway ports
    
    The ML2/OVN OVSDB maintenance tasks
    check_redirect_type_router_gateway_ports and
    add_gw_port_info_to_logical_router_port are fixed to handle
    properly the gateway ports of user defined flavor routers.
    They should be ignored because they don't exist in the OVN
    database.
    
    Closes-Bug: #2064778
    
    Change-Id: I75c49e2b00ea186d0d34f9441eb86034de31b21e


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

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https://bugs.launchpad.net/bugs/2064778

Title:
  The ML2/OVN OVSDB maintenance job fails to handle properly user
  defined flavor routers gateway ports

Status in neutron:
  Fix Released

Bug description:
  The ML2/OVN OVSDB maintenance tasks
  check_redirect_type_router_gateway_ports and
  add_gw_port_info_to_logical_router_port fail when trying to process
  the gateway ports of user defined flavor routers:

  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics [None req-9bf768c3-df47-4d6f-9dd1-5b9960b50f0d None None] Failed to call periodic 'neutron.plugins.ml2.driver
  s.ovn.mech_driver.ovsdb.maintenance.DBInconsistenciesPeriodics.add_gw_port_info_to_logical_router_port' (it runs every 600.00 seconds): AttributeError: 'NoneType' object has no attrib
  ute 'ports'                                                                                                                                                                            
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics Traceback (most recent call last):                                                                           
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics   File "/opt/stack/data/venv/lib/python3.10/site-packages/futurist/periodics.py", line 290, in run           
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics     work()                                                                                                   
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics   File "/opt/stack/data/venv/lib/python3.10/site-packages/futurist/periodics.py", line 64, in __call__       
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics     return self.callback(*self.args, **self.kwargs)                                                          
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics   File "/opt/stack/data/venv/lib/python3.10/site-packages/futurist/periodics.py", line 178, in decorator     
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics     return f(*args, **kwargs)                                                                                
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/maintenance.py", line 67, in dec
  orator                                                                                                                                                                                 
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics     return f(self, *args, **kwargs)                                                                          
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/maintenance.py", line 943, in add_gw_port_info_to_logical_router_port
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics     for lrp in ovn_lr.ports:
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics AttributeError: 'NoneType' object has no attribute 'ports'
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics 
  May 03 22:50:17 central neutron-server[1035740]: DEBUG futurist.periodics [None req-9bf768c3-df47-4d6f-9dd1-5b9960b50f0d None None] Submitting periodic callback 'neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.maintenance.DBInconsistenciesPeriodics.check_redirect_type_router_gateway_ports' {{(pid=1035740) _process_scheduled /opt/stack/data/venv/lib/python3.10/site-packages/futurist/periodics.py:638}}
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics [None req-9bf768c3-df47-4d6f-9dd1-5b9960b50f0d None None] Failed to call periodic 'neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.maintenance.DBInconsistenciesPeriodics.check_redirect_type_router_gateway_ports' (it runs every 600.00 seconds): AttributeError: 'NoneType' object has no attribute 'options'
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics Traceback (most recent call last):
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics   File "/opt/stack/data/venv/lib/python3.10/site-packages/futurist/periodics.py", line 290, in run
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics     work()
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics   File "/opt/stack/data/venv/lib/python3.10/site-packages/futurist/periodics.py", line 64, in __call__
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics     return self.callback(*self.args, **self.kwargs)
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics   File "/opt/stack/data/venv/lib/python3.10/site-packages/futurist/periodics.py", line 178, in decorator
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics     return f(*args, **kwargs)
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/maintenance.py", line 67, in decorator
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics     return f(self, *args, **kwargs)
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics   File "/opt/stack/neutron/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/maintenance.py", line 694, in check_redirect_type_router_gateway_ports
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics     redirect_value = lrp.options.get(
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics AttributeError: 'NoneType' object has no attribute 'options'
  May 03 22:50:17 central neutron-server[1035740]: ERROR futurist.periodics 
  May 03 22:50:17 central neutron-server[1035740]: DEBUG futurist.periodics [None req-9bf768c3-df47-4d6f-9dd1-5b9960b50f0d None None] Submitting periodic callback 'neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb.maintenance.DBInconsistenciesPeriodics.check_for_inconsistencies' {{(pid=1035740) _process_scheduled /opt/stack/data/venv/lib/python3.10/site-packages/futurist/periodics.py:638}}

  The tasks should ignore the gateway ports of user defined flavor
  routers, because they don't exist in the OVN database.

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