Re: vacuum

Bonjour Rainer Mager
>
> Good ideas except I think I wasn't clear. The system is a commercial product
> with numerous individual customers. Each customer is somewhat unique and we
> want to have the system capable of vacuuming automatically for all users.
>
> The thing is that some users might have systems that are used little in the
> early morning but others might be very different. We would rather not do
> usage statistic gathering/analysis if there was a better way.

We have the same kind of application here.
We vacuum according the load, if the load start to be "high"
we vacuum ->earlier<-, ok there is a little penalty on users, but as soon
the data-base is clean, the performance is dramaticaly improving
and the load just drop. So instead to have user penalised
for a long time, we just use it as a trigger to clean the base.
(we do not want the user to vacuum at will)

A bientot
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