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Thats troubling... We are considering using DVR soon, and we have to restart neutron-openvswitch-agent and openstack-nova-compute periodically go get them to talk to rabbit again....

Thanks,
Kevin
________________________________
From: Korzeniewski, Artur [artur.korzeniewski at intel.com]
Sent: Wednesday, August 05, 2015 12:36 PM
To: OpenStack Development Mailing List (not for usage questions)
Subject: [openstack-dev] [neutron][dvr] Removing fip namespace when restarting L3 agent.

Hi all,
During testing of Neutron upgrades, I have found that restarting the L3 agent in DVR mode is causing the VM network downtime for configured floating IP.
The lockdown is visible when pinging the VM from external network, 2-3 pings are lost.
The responsible place in code is:
DVR: destroy fip ns: fip-8223e12e-837b-49d4-9793-63603fccbc9f from (pid=156888) delete /opt/openstack/neutron/neutron/agent/l3/dvr_fip_ns.py:164

Can someone explain why the fip namespace is deleted? Can we workout the situation, when there is no downtime of VM access?

Artur Korzeniewski
--------------------------------------------
Intel Technology Poland sp. z o.o.
KRS 101882
ul. Slowackiego 173, 80-298 Gdansk

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