Scott Whitney <scott@xxxxxxxxxxx> wrote: > Each Saturday, I run: vacuumdb -a -v. I have autovac on all the > time. > > However, my pg_clog directory lists clog files going back to > July. > > This is pg 8.4.4 on Linux (CentOS 5.5). > > I know this isn't a whole lot of information at this time. What > more would be useful in finding out what's failing and where? Nothing is failing -- clog is needed to track what has committed until transactions are "frozen". > I seem to recall that doing vacuumdb -f -a -v resolved it Are you sure that wasn't -F rather than -f ? The uppercase switch freezes tuples, which would allow clog to be cleaned up. This shouldn't normally be needed, unless you have some other reason to need aggressive freezing. -Kevin -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin