On Thu, Jan 08, 2026 at 09:57:38PM +0200, Heikki Linnakangas wrote: > When an autovacuum worker exits, ProcKill() sends SIGUSR2 to the launcher. I > propose moving that responsibility to the postmaster, because:
This seems generally reasonable to me. So does the patch. > * It makes it consistent with background workers. When a background worker > exits, the postmaster sends the signal to the launching process (if > requested). I've wondered about making autovacuum workers proper background workers. > I'm a little surprised it wasn't done this way to begin with, so I wonder if > I'm missing something? This code dates back to commit e2a186b03c. I skimmed through the nearby thread [0] and didn't immediately notice any discussion about this. My guess is that it seemed simpler to directly alert the launcher, since it's the one that needs to take action. [0] https://postgr.es/m/flat/20070404233954.GK19251%40alvh.no-ip.org -- nathan
