Sabin Coanda wrote: > Hi there, > > Using explicitly VACUUM command give me the opportunity to fine tune my > VACUUM scheduling parameters, after I analyze the log generated by VACUUM > VERBOSE. > > On the other hand I'd like to use the auto-vacuum mechanism because of its > facilities. Unfortunately, after I made some initial estimations for > autovacuum_naptime, and I set the specific data into pg_autovacuum table, I > have not a feedback from the auto-vacuum mechanism to check that it works > well or not. It would be nice to have some kind of log similar with the one > generated by VACUUM VERBOSE. Is the auto-vacuum mechanism able to provide > such a useful log ? No, sorry, autovacuum is not currently very good regarding reporting its activities. It's a lot better in 8.3 but even there it doesn't report the full VACUUM VERBOSE log. It looks like this: LOG: automatic vacuum of table "alvherre.public.foo": index scans: 0 pages: 45 removed, 0 remain tuples: 10000 removed, 0 remain system usage: CPU 0.00s/0.00u sec elapsed 0.01 sec LOG: automatic analyze of table "alvherre.public.foo" system usage: CPU 0.00s/0.00u sec elapsed 0.00 sec -- Alvaro Herrera http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc.