[Dovecot] 1.0alpha1: too many open files

[Jeff Ballard]

On Mon, 05 Sep 2005 15:10:06 -0700  Marc Perkel wrote:

> I found this:
> 
>     echo "4096" > /proc/sys/kernel/file-max
> 
> First cat /proc/sys/kernel/file-max to see what it's set to.
> 
> 
> 
> Jeff A. Earickson wrote:
> 
> > Help...
> >
> > Dovecot 1.0alpha1 hung up today with nothing working and
> > the following spewing to my syslog:
> >
> > pipe() failed: Too many open files
> >
> > My setup: Solaris 9, just using imap, mbox format.  The various "max" 
> > settings in dovecot.conf use the defaults. Suggestions on what to 
> > change in fovecot.conf to keep this from happening?


Actually on Solaris 9 you want to put something like this in /etc/system:

set rlim_fd_cur = 32768
set rlim_fd_max = 65536

That sets the current fd's to 32k and max to 64k.  Unfortunately, to take 
effect you'll need to reboot.  After the reboot, ulimit -a should show that 
nofiles(descriptors) is 32768.

-Jeff


-- 
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Jeff Ballard <ballard at engr.wisc.edu>   608-265-5090
Unix Systems Manager, Computer-Aided Engineering Center