>There has been a lot of discussion around replacing ovsdb with etcd >and using RAFT for active/active ovsdb clustering (please look >through the ML archives for specific references). At this point, >I don't believe those efforts will be landing in 2.6.0, so we've >had some folks here working on an active/passive HA solution on top >of the OVSDB replication feature that recently merged. I'm not >100% up to date on it, but I know that there are issues, so I'll >see what I can do about getting those in the know to contribute >to this thread...
I'm working to implement the solution Ryan mentioned. The main issue I'm running into is that the neutron ML2 plugin doesn't reset TCP connections from my experiments (to NB and SB), so any kept-alive/montoring tcp connections won't work properly. Hacky solution is to restart neutron-server, but I'll probably work on an upstream fix to restart the tcp connections when they die.
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