16.04.2025 08:24, Andrey Borodin пишет:
> 2. After failover, old Primary node must rejoin cluster by running pg_rewind and following timeline switch.
It is really do-able: BiHA already does it. And BiHA runs as a child
process of postmaster, ie both postmaster and BiHA doesn't restart when
PostgreSQL needs to rewind and restart.
Yes, there are non-trivial amount of changes made into postmaster
machinery. But it is doable.
--
regards
Yura Sokolov aka funny-falcon