On Mon, Jan 31, 2022 at 10:01 AM <[email protected]> wrote: > Many thanks. > And did you have the opportunity to fall back on the standby server, > either for maintenance or because the first server went down in an > unintended manner ? > > On 28/01/2022 19:42 Mark Moseley <[email protected]> wrote: > > I've only done failovers while testing, both when setting things up initially and once things were in production. What I haven't had happen yet is a non-user-initiated failover due to some real issue, since it's only been deployed to production for a few months now. My testing failover all worked well though.
I did however learn that if you're using a mysql backend for leases (as I am, replicating an on-board mysql db between both Kea hosts), you should suppress replication for the lease tables, since the hot standby does its own Kea-based replication for leases (I had missed this in the docs). I put the leases into a second database and turned off replication for that database. I could've suppressed it just for the lease4 table but this felt "cleaner". I imagine the same is likely true for other backends like Postgres.
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