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Date: 	Mon, 9 Dec 1996 20:18:25 -0800 (PST)
From: Tom Samplonius <tom@sdf.com>
To: "S(pork)" <spork@super-g.com>
cc: michael butler <imb@scgt.oz.au>, Jason Fesler <jfesler@calweb.com>,
        hackers@freebsd.org
Subject: Re: Apache and huge numbers of IP's..
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On Mon, 9 Dec 1996, S(pork) wrote:

> 
> This is an interesting question; a while back I posted something similar
> and everyone agreed "maxusers" set to a high value would take care of max
> processes and max open files...  However, in setting up a medium duty
> (2G/Day) dedicated webserver, I was running out of processes with maxusers
> at 200.  When I re-compiled the kernel with params like those below, all
> was well.  Could someone clarify?  I'll be building another big machine
> (news) soon, and I will be dealing with the same issue.
> 
> Thanks,
> 
> Charles

  Not exactly.  Increasing maxusers only increases the size of system wide
descriptor table.  OPEN_MAX chanes the max number of open files per uid.
open files per uid never changes via maxusers.  CHILD_MAX sets the total
number of processes per uid.

  You will notice that Apache runs and all its related processes run under
a single uid, so you will hit the default limit of 40 processes and 64
files per uid quite quickly.  The defaults are intended for a general
purpose machine where you do not want users using more than their share of
the processes and files.

Tom

> On Sun, 8 Dec 1996, michael butler wrote:
> 
> > The number of file handles available is related to the maxusers config
> > parameter. If you wish to alter that without affecting the other table
> > sizes, you can add something like this to your config file ..
> >
> > options		"CHILD_MAX=512"
> > options		"OPEN_MAX=512"
> [snip]
> > 	michael
> >
> 
>