Tom Lane wrote:
> Alvaro Herrera <alvherre@commandprompt.com> writes:
> > I'm seeing a 8.3 database whose autovacuum-initiated vacuums are being
> > cancelled and I am not sure of the cause. I am wondering if a HOT
> > cleanup round on a page could try to acquire locks on it that would
> > conflict with autovacuum (basically anything that conflicts with a
> > vacuum lock). This would cause autovacuum to commit hara-kiri.
>
> This is nonsense, no? A buffer cleanup lock is an LWLock not a lock
> manager lock.
Yeah, I realized that after awhile. There must be something else they
are doing.
--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
