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Date:      Wed, 8 Nov 2000 15:22:34 -0600 (CST)
From:      Mike Silbersack <silby@silby.com>
To:        Len Conrad <lconrad@Go2France.com>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: post-install of kernal sources, maxusers max?
Message-ID:  <Pine.BSF.4.21.0011081519050.45883-100000@achilles.silby.com>
In-Reply-To: <5.0.0.25.0.20001108211845.04d2d0a0@mail.Go2France.com>

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On Wed, 8 Nov 2000, Len Conrad wrote:

> All I need to change, I think, is maxusers since we're getting this 
> error from postfix:
> 
> Nov  8 04:59:41 postfix/qmgr[16383]: fatal: socket: No buffer space available
> Nov  8 04:59:41 postfix/smtp[16872]: fatal: socket: No buffer space available
> Nov  8 05:00:58 postfix/qmgr[16876]: fatal: socket: No buffer space available
> 
> The machine can get up 200 SMTP processes and 50 SMTPD processes 
> simulatenously, 256 meg RAM.
> 
> Increasing maxusers will fix this pb? afaic, maxusers can't be fixed 
> with sysctl.

I think you can up the mbuf related settings while the system is
running.  Give it a try.  The two sysctls you'll want to fiddle with are:

kern.ipc.nmbclusters
kern.ipc.nmbufs

You can determine which is needed more through a quick netstat -m.

Mike "Silby" Silbersack



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