On Fri, Jan 25, 2008 at 02:10:06PM -0500, Tom Lane wrote:
> > I used lsof to monitor which files the backend was actually working on. It
> > took two of the four days for it to vacuum a single table with 43
> > one-gigabyte extents. I have one table with over 300 extents. I'm looking
> > at a vacuum process which can ultimately take weeks (if not months) to
> > complete.
>
> Yipes. You are just using plain VACUUM, right, not VACUUM FULL?
> Have you checked that vacuum_cost_delay isn't enabled?
pg_dump/pg_restore may be a lot faster here - we're in an emergency
situation anyway and after that, the whole DB will be clean again, all
indices rebuilt nicely, no bloat in the tables.
Tino.
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