4096 file descriptors

[Adam Tauno Williams]

On Wed, 2012-08-22 at 14:43 -0400, Ron Vachiyer wrote: 
> Quick question about filedescriptors.  On Centos6, cyrus 2.3.16 seems
> to be able to open 4096 FDs ;
> master[27121]: retrying with 4096 (current max)
> ulimit -a says 1024;
> open files                      (-n) 1024
> I am looking to increase this, and have found some documentation
> saying to increse file-max in /proc.  However, file-max already has a
> much larger number;
> cat /proc/sys/fs/file-max
> 1201105

Yep

> The only way I have found so far is to add a ulimit -n 8192
> in /etc/rc.d/init.d/cyrus-imapd

man pam_limits

> Is there a more generic/cleaner way to do this?

Yep, you can setup a limits.conf file that adjusts limits per user, per
group, etc... 
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