tripleo-heat-templates/releasenotes/notes/default-ovn-to-raft-cluster...

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---
prelude: >
The default ovsdb-server deployment mode has been switched from
active/backup with Pacemaker to the native active/active RAFT clustering.
issues:
- |
To operate well at scale, it is important that OVS 2.17+ is used when
deploying with RAFT clustering. Specifically, python-ovs >= 2.17.1 is
required.
upgrade:
- |
When upgrading from a non-RAFT deployment, the old Pacemaker ovn-dbs-bundle
containers will still exist and need to be cleaned up. They will not
interfere with the function of the cluster, as all services connecting to
ovsdb-server will be configured to connect to the server's individual IP
addresses and not the Pacemaker ovsdb-server VIP.