Expireover running really slow

[Marc Stürmer]

Am Mittwoch 09 Januar 2008 schrieben Sie:

> This is a real problem for running innd with large storages. Performance
> degrades because overview records are highly scattered over big area,
> ovdb does not help. An expiration for ovdb works much faster for first

OVDB is the worst of the backends in time of expiration. Buffindexed may be 
somewhat faster, but it lost too many articles for me when I used it on my 
machine, so it's also not really an option for me anymore. 

The best of the overview-backends for me is really tradindexed now. Works 
good, no performance loss compared to ovdb and expiration time shrank from 6 
hours under ovdb to 1 hour. 

Also please note, that buffindexed is not a circular system like CNFS, meaning 
when your buffers are full, they're full and you got a problem, because 
overview will just cease to work then at all, so you always should have added 
some spare buffers "just in case" in your config if that case happens. 

Greetings,
Marc