Re: Vacuum problems

"Scot Kreienkamp" <SKreien(at)la-z-boy(dot)com> writes:
> The nightly vacuums have been working flawlessly, but about three weeks
> ago the vacuum full started failing. It was taking about 5-10 minutes
> normally, but all of a sudden it started hitting the command timeout
> that I have set, which is at 60 minutes. I thought that it may be a
> corrupt table or a large amount of content had been deleted from a
> database, so I built a script to loop through each database and run a
> vacuum full analyze on each table individually thinking I would find my
> problem table. The script finished in 5 minutes!

Maybe the vacuum was blocking waiting for someone's lock on a table?
What else is running in parallel with your nightly vacuum script?

regards, tom lane