saslauthd performance

[Patrick Ben Koetter]

* Axel Grupe <grupe at osnanet.de> [041115 12:32]:
> Hi,
> 
> I got performance problems with saslauth daemon. I`m using debian with 
> cyrus 2.1.16 and saslauthd 2.1.19 for authentication.
> The saslauthd is configured to use pam, which itself uses mysql for  
> password-verification.

try auxprop: sql

p at rick



> 
> I test the system with 50 perl-script in the background from another 
> machine, which makes continuous pop3-connections to my server.
> 
> So, the problem is, if I just take one user for the 
> perl-authentification-test,  cyrus or better the saslauthd can handle up 
> to 7000 queries per minute.
> But, if there isn`t only one user but rather 45.000 users, which will be 
> connected through the perl-scripts. The performance goes down to ~1000 
> queries per minute.
> I don`t think this causes of pam or mysql, because if saslauthd uses 
> directly ldap (just al little test of me) saslauthd just handles the 
> same (~1000) queries per minute.
> 
> Another test: if I use auxprop in cyrus with mysql, it goes at least 
> down to 150 queries per minute.
> 
> I fixed some params of saslauthd like -c, -n (0), -t  ... but it didn`t 
> get fast!!!
> 
> So has anyone an idea?
> 
> 
> ---
> Cyrus Home Page: http://asg.web.cmu.edu/cyrus
> Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
> List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html

-- 
Patrick Koetter            Tel: 089 45227227
Echinger Strasse 3         Fax: 089 45227226
85386 Eching-Dietersheim   Mail: p at state-of-mind.de
---
Cyrus Home Page: http://asg.web.cmu.edu/cyrus
Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html