James Cloos wrote:
>>>>>> "Tom" == Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
>
>>> Why was the db using that extra five plus gigs?
>
> Tom> Smells like a hadn't-been-vacuuming-often-enough problem.
>
> Sorry, I forgot to mention: autovacuum was enabled and I also ran
> this script every night via cron:
>
> #!/bin/bash
> FULL=''
> test $(date +%w) -eq 0 && FULL='FULL'
> exec psql -U dbm -c "VACUUM ${FULL} VERBOSE ANALYZE" dbm
>
> The app at least felt faster with the daily vacuum, even though
> autovacuum was running. I don't have a good explanation for that,
> either.
Autovacuum by default won't do enough work for many production
databases. You still have to configure it.
Joshua D. Drake