Running OVN at Scale and checking where it burns
Channel: OpenInfra Foundation
Date: 2023-06-29

When running an openstack environment with more than 10000 VMs we have noticed some scaling issues with the ml2/ovs network plugin (looking at you RabbitMQ).
To get away from these issues we decided to replace the network backend with OVN during our migration from queens to yoga.
In this session we want to share our experiences with running ovn with more than 10000 VMs and any issues we found along the way.
We also want to share the upstream changes we needed to make OVN work for us.
This includes changes to the neutron ovn plugin, the ovn code itself, as well as the ovn bgp agent.

Additionally OVN offers a bunch of additional features which are not available in neutron at the moment.
We want to share our plans about these features how that might impact neutron to support these features.

Speakers:
Felix Huettner
Ihtisham ul haq


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