Ricardo Kustner wrote:
> 
> Hi,
> 
> One of the mmbase installations we host has a custom builder which 
> functions as some sort of forum... while looking through the database I 
> was kinda shocked when I saw that the table used by this builder has 
> more than 10,000 objects... every object is a reaction to a posted 
> article. Could it be that this has a negative effect on the performance 
> of mmbase? I've noticed this mmbase installation is extremely slow for 
> an X amount of time after startup...
> Since all these records are related to something, the install_insrel 
> table is quite huge too...
> 

If you don't have indexes on these tables things can be very slow.

> A related question I have on this: if an object has an expire time set, 
> will it be deleted from the database if it expires or will it simply not 
> be displayed (in other words: do objects stick around for ever in the 
> database?)

Expire time isn't an MMBase-thing, at least the basis install doesn't 
have this, so it must have something to do with your application. Maybe 
the webpages don't show objects after their expire time?

Gerard


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