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[Daniel Alvarez <1861510@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Whenever a chassis is updated for whatever reason, we're triggering the
rescheduling mechanism [0]. As the current agent liveness check involves
updating the Chassis table quite frequently, we should avoid
rescheduling gateways for those checks (ie. when either nb_cfg or
external_ids change).


[0] https://github.com/openstack/neutron/blob/4689564fa29915b042547bdeb3dcb44bca54e20c/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py#L87

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1861510

Title:
  [OVN] GW rescheduling mechanism is triggered on every Chassis updated
  unnecessarily

Status in neutron:
  New

Bug description:
  Whenever a chassis is updated for whatever reason, we're triggering
  the rescheduling mechanism [0]. As the current agent liveness check
  involves updating the Chassis table quite frequently, we should avoid
  rescheduling gateways for those checks (ie. when either nb_cfg or
  external_ids change).

  
  [0] https://github.com/openstack/neutron/blob/4689564fa29915b042547bdeb3dcb44bca54e20c/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovsdb_monitor.py#L87

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