Before you start Dovecot type this in you shell:

ulimit -n 65000

I don't know how the use of the 'unlimited' word works: maybe this is only 1024?

Cheers,

Jan

-----Oorspronkelijk bericht----- Van: dovecot-bounces+jan.vandenberg=isp.solcon.nl@dovecot.org [mailto:dovecot-bounces+jan.vandenberg=isp.solcon.nl@dovecot.org] Namens Ralf Hildebrandt Verzonden: maandag 25 februari 2008 10:25 Aan: dovecot@dovecot.org Onderwerp: [Dovecot] 1.1rc1: Maximum number of mail processes exceeded

I'm getting "Maximum number of mail processes exceeded" messages when 512 imap Processes are active.

Dovecot reports:

Warning: fd limit 1024 is lower than what Dovecot can use under full load (more than 1712). Either grow the limit or change login_max_processes_count and max_mail_processes settings

But in my /var/service/dovecot/run script I use:

#!/bin/sh mkdir /var/core chmod 1777 /var/core echo /var/core/%p > /proc/sys/kernel/core_pattern ulimit -n unlimited ulimit -c unlimited /usr/local/sbin/dovecot -F

So how can I raise the filedescriptor limit above 1024 (linux-2.6.24.2, Debian)?

-- Ralf Hildebrandt (Ralf.Hildebrandt@charite.de) snickebo@charite.de Postfix - Einrichtung, Betrieb und Wartung Tel. +49 (0)30-450 570-155 http://www.arschkrebs.de StGB SS328 Absatz 2.3: Mit Freiheitsstrafe bis zu fnf Jahren oder mit Geldstrafe wird bestraft, wer eine nukleare Explosion verursacht

Ralf Hildebrandt wrote:

So how can I raise the filedescriptor limit above 1024 (linux-2.6.24.2, Debian)?

In /etc/security/limits.conf, set

## domain type item limit

•           soft    nofile          8192

•           hard    nofile          8192

And in /etc/profile do

ulimit -HSn 8192

Log out from shell and log back in and you have new settings in effect.

Tomi