Rod Taylor <pg(at)rbt(dot)ca> writes:
> The catch is that there are some other very active structures (like
> pg_listener for Slony) which after a couple of hours without vacuuming
> will quickly have the DB at an unreasonably high load (low tens) which
> seems to all but halt the vacuum on the large structure.
Yeah. We desperately need to reimplement listen/notify :-( ... that
code was never designed to handle high event rates.
regards, tom lane