Minimum hardware capacity for 35k e-mail scans/day

Julian Field MailScanner at ecs.soton.ac.uk
Tue Nov 20 17:11:27 GMT 2007


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shuttlebox wrote:
> On Nov 19, 2007 10:07 AM, Greg Matthews <gmatt at nerc.ac.uk> wrote:
>   
>> Steve Freegard wrote:
>>     
>>> Julian Field wrote:
>>>       
>>>> Only 1 process at a time can hold the BerkeleyDB open and write to it.
>>>> Lots of processes can hold the RDBMS open at once. It's all down to
>>>> file locking.
>>>>         
>>> See http://wiki.apache.org/spamassassin/BayesBenchmarkResults
>>>       
>> wow. Interesting stuff. So why does SA not use sdbm by default?
>>     
>
> I tested SDBM and it works just fine. My daily expire job went from
> over a minute to little over 10 seconds. Syncs are still completed so
> fast (0-1s) that I don't notice the difference. I wrote a wiki page on
> how to use SDBM based on Scott Silva's SQL guide.
>
> http://wiki.mailscanner.info/doku.php?id=documentation:anti_spam:spamassassin:bayes:sdbm
>
>   
I'm testing it out now. If it's as good as it is reckoned to be, how 
about I make it the default in new installations? (i.e. change 
mailscanner.cf to use it)

Jules

- -- 
Julian Field MEng CITP
www.MailScanner.info
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