Comment 15 for bug 1798475

http://logstash.openstack.org/#/dashboard/file/logstash.json?query=message:%5C%22neutron.tests.fullstack.test_l3_agent.TestHAL3Agent.test_ha_router_restart_agents_no_packet_lost%5C%22%20AND%20message:%5C%22FAILED%5C%22

Failed cases were seen at:
(1) https://review.openstack.org/#/c/626829, reason: kill -9 VRRP process
(2) https://review.openstack.org/#/c/628691, "forcing new election", "Received advert with higher priority 50, ours 50"
(3) https://review.openstack.org/#/c/628057, "Received advert with higher priority 50, ours 50"
(4) https://review.openstack.org/#/c/628857, code was not fully accomplished, fullstack all cases were failed.
(5) https://review.openstack.org/#/c/624709, code was not fully accomplished, fullstack all cases were failed.
(6) https://review.openstack.org/#/c/624708, code was not fully accomplished, fullstack all cases were failed.

Let's investigate that re-election and 'non-preemptive' issue. More like a keepalived problem.