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[Launchpad Bug Tracker <1928675@xxxxxxxxxxxxxxxxxx>]

[Expired for neutron because there has been no activity for 60 days.]

** Changed in: neutron
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1928675

Title:
  [stein][neutron] l3 agent error

Status in neutron:
  Expired

Bug description:
  
  I've just upgraded from openstack queens to rocky and then to stein on centos 7.
  In my configuration I have router high availability.
  After the upgrade and rebooting each controller one by one I get the following errors on all my 3 controllers under /var/log/neutron/l3-agent.log

  http://paste.openstack.org/show/805407/

  If I run openstack router show for for one of uuid in the log:
  http://paste.openstack.org/show/805408/

  Namespace for router in present on all 3 controllers.
  After the controllers reboot,some routers lost their routing tables, but restarting l3-agent they went ok.
  The l3 agent respawning error, cause neutron to fill controller memory and the controller stops to responding and it is fenced by the others.
  So the router ha move some jobs to another controller and it fills its memory and so on.
  I stopped neutron services and I cleaned directory /var/lib/neutron/ha_confs
  Restarting neutron services respawning errors disappeared but I had to create again some router static routes (not all).
  Probably it is a bug ?
  Ignazio

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