> AFAIR (Magnus can surely confirm) there were some other tables that
> weren't showing stats as all zeros -- but there's no way to know whether
> those numbers were put there before the collector had "frozen" (if
> that's really what's happening).
Yeah - I have numbers that updated before the stats collector started
freezing. Do you know which version of PG this started with? I have
upgraded 8.1.3, 8.1.4, 8.2, and 8.2.1 in the past months and I didn't
have the collector enabled until 8.2.1 - so I'm not sure how long this
has been a problem.
I might try rolling back to a previous version - it's either that or
setup a scheduled vacuum analyze until we figure out this problem. I'm
having to manually run it every day now... =) I think this is a pretty
critical problem since it cripples autovacuum on Windows.
Are you guys in a position to debug the collector process and see where
it is freezing (ala Tom's earlier comment)? Anything I can do to help
debug this problem faster?