2009/5/25 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:
> With 2000 databases to cycle through, autovac is going to be spending
> quite a lot of time just finding out whether it needs to do anything.
> I believe the interpretation of autovacuum_naptime is that it should
> examine each database that often, ie once a minute by default. So
> it's got more than 30 databases per second to look through.
> Maybe it would make more sense to have one database (or at least,
> many fewer databases) and 2000 schemas within it?
It's rather impossible in my case.
> If you really want to stick with this layout, you're going to have to
> increase autovacuum_naptime.
Thanks for hint.
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