> It's hard to tell, because you're just handwaving about what it is you
> think isn't being logged; nor is it clear whether you have any evidence
> that locks are the problem. Offhand I'd think it at least as likely
> that autovacuum thinks it doesn't need to do anything, perhaps because
> of a statistics issue. There *is* an elog(DEBUG3) in autovacuum.c
> that reports whether autovac thinks a table needs vacuumed/analyzed ...
> maybe that needs to be a tad more user-accessible.
Yeah, it would be really good to be able to log that without bumping the
log levels of the server in general to DEBUG3. On a busy production
server, using any of the DEBUG levels is pretty much out of the question
... they can produce up to 1GB/minute in output.
-- -- Josh Berkus PostgreSQL Experts Inc.
http://www.pgexperts.com