Re: When do I Vacuum ?

could someone please post an answer, even if it's just a pointer to
somewhere else ... please ....
:-)

Steve

"Steve Brett" <steve(dot)brett(at)e-mis(dot)com> wrote in message
news:9ufpug$217v$1(at)news(dot)tht(dot)net(dot)(dot)(dot)
> hi,
>
> I've got a DB driven web application which currently has approx 298
inserts
> per day and 540 edits/deletes.
>
> This figure will change daily and currently i have a cron job set up to
> vacuum the database every hour during 'work time':
>
> 0 7-19/1,23 * * * /usr/local/pgsql/bin/vacuumdb -z -d edb
> 30 7-19/4,23 * * * /backup/dumpit
>
> I've also started reading Bruce's book (and what a fine book it is ... :-)
> and noticed that he suggests vacuuming once a day when the db is quiet.
>
> Would this be sufficient ? The database drives a web based
> calendar/appointment booking/reporting system i've written in php and is
> used extensively by 3 departments and has approx 200 people log in each
day.
>
> Needless to say speed it paramount but I've got a sneaky feeling I might
be
> vacuuming too often ....
>
> Many thanks for you help,
>
> Steve
>
>