On Sat, Jan 15, 2022 at 11:44 AM Andres Freund <and...@anarazel.de> wrote: > > The patch Alexander tested most recently uses a tri-state eof flag [...] > > What about instead giving WalReceiverConn an internal WaitEventSet, and using > that consistently? I've attached a draft for that. > > Alexander, could you test with that patch applied?
Isn't your patch nearly identical to one that I already posted, that Alexander tested and reported success with here? https://www.postgresql.org/message-id/5d507424-13ce-d19f-2f5d-ab4c6a987316%40gmail.com I can believe that fixes walreceiver (if we're sure that there isn't a libpq-changes-the-socket problem), but AFAICS the same problem exists for postgres_fdw and async append. That's why I moved to trying to fix the multiple-WES thing (though of course I agree we should be using long lived WESes wherever possible, I just didn't think that seemed back-patchable, so it's more of a feature patch for the future).
