> Have you looked at pg_upgrade?: I have, but I want to keep downtime to a minimum and from my understanding the switching of a fully synced logical replica only requires updating your sequences. Which should be possible in less than 60 seconds.
> 1 GB each? Yes, each. Roughly around there. On Sat, Jun 8, 2024 at 7:46 PM Adrian Klaver <adrian.kla...@aklaver.com> wrote: > On 6/8/24 10:40, Koen De Groote wrote: > > What I'm trying to do is upgrade a PG11 database to PG16, using logical > > replication. > > Have you looked at pg_upgrade?: > > https://www.postgresql.org/docs/current/pgupgrade.html > > > > > The PG11 has an active and a standby, there are a handful of databases. > > On particular one has a few tables just over 100GB, then a few 100 > > tables near 1GB. > > 1 GB each? > > > > > What I'd do is start a publication with no tables and add them 1 at a > > time, refreshing subscription each time. > > > > This might take a long time, so my main questions relate to potential > > network issues or various situations where the instance receiving the > > logical replication, suddenly stop being able to receive. > > > > Resyncing, and the effects of WAL buildup, are my main concern. > > > > Accidentally sent a mail to only your email, sorry for that. > > > > Regards, > > Koen De Groote > > -- > Adrian Klaver > adrian.kla...@aklaver.com > >
