Comment by erik_seaberg
6 hours ago
https://www.postgresql.org/docs/current/warm-standby.html#SY... mentions quorum-based synchronous replication, which sounds encouraging.
6 hours ago
https://www.postgresql.org/docs/current/warm-standby.html#SY... mentions quorum-based synchronous replication, which sounds encouraging.
That still only has one primary: you can't just start pointing writes at the upgraded standbys. Synchronous replication (besides having its own downsides) just shortens the time needed for the replicas to catch up. You still need to perform a cutover.