What would be the appropriate value for kern.maxfiles

Ramesh Ayyagari rameshayyagari at yahoo.com
Wed Nov 19 13:04:11 PST 2008


my server primarily runs postfix experiencing very huge inflow of mails >60000 per hour. There are some other services that the servers runs like caching DNS etc but postfix being the primary application running on it.

Ram




________________________________
From: Glen Barber <glen.j.barber at gmail.com>
To: Ramesh Ayyagari <rameshayyagari at yahoo.com>
Cc: stable at freebsd.org
Sent: Tuesday, November 18, 2008 6:43:56 PM
Subject: Re: What would be the appropriate value for kern.maxfiles

On Tue, Nov 18, 2008 at 6:05 PM, Ramesh Ayyagari
<rameshayyagari at yahoo.com> wrote:
> Hello All,
>
> I have my client system running FreeBSD 6.3-RELEASE-p1 with 4 GB of RAM. This morning i have the following errors popping up on the console log -
>
> postfix/qmgr[94057]: fatal: socket: Too many open files
>
> Googling for this error, I found this is someway related to the kernel parameter kern.maxflies and increasing this value can have errors go away. The present value of this parameter is 24000. I also found this also depends of the RAM we have on the system.
>
> what would the appropriate value for kern.maxfiles for a system having 2GB RAM, a system having 4 GB and a system having 16GB of RAM. Please help
>

The Xorg meta-package recommends 'kern.maxfiles="25000"' for a desktop
system.  This is a situation where it really depends on what you're
using your system for.

HTH

-- 
Glen Barber
570.328.0318

"If you have any trouble sounding condescending, find a Unix user to
show you how it's done."
--Scott Adams
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