On 10/7/2010 10:16 AM, Joseba Torre wrote:
On Miércoles 06 Octubre 2010 17:11:49 Timo Sirainen escribió:
Ops! I thought limits.conf was a semi-official answer for this issue. But you're right, I've been playing with it and looking at /proc/$PID/limits and it has no influence. It works for initial dovecot process (run by root), Really? It does change it then. Maybe the "*" line? I'm pretty sure the "dovecot" lines don't.. Sorry, I was confused. When started at boot, it doesn't affect, but when I do
# service dovecot restart
as root, the root lines apply.
but not for the imap-login or pop3-login ones. That's because these processes calculate the max. number of needed fds and drops the limit automatically.
Are you actually seeing error messages about actually running of fds? I got a lot of
dovecot: pipe() failed: Too many open files
until I restarted dovecot.
I
thought the problem was:
"Warning: fd limit 1024 is lower than what Dovecot can use under full load" This is checked only at startup when running the master process. And if dovecot process's fd limit is higher than 1024, then I'd think this error message goes away?.. Finally, if changed my startup script adding
ulimit -n 4096
before
daemon /usr/local/sbin/dovecot
and the problem has disappeared.
Thanks!
To help out this thread, my redhat (centos 5.5) says: [root@mail ~]# ulimit unlimited [root@mail ~]#
This has never been changed by me and, so, I don't know why your redhat is coming default with a limit. You seem to not have changed it as you are baffled at why the limit is there. I'll try and figure out a permanent way for you to change it.
Jerrale G. SC Senior Admin