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Subject: Re: hang in poll() w/ large # simul connections
From: Matt Shibla (mshiblacolltech.com)
Date: Mon Feb 28 2000 - 12:10:35 CST

On Sun, Feb 27, 2000 at 04:08:55PM -0500, Wietse Venema wrote:
> What are the process limits on the respective servers? I do ot
> understand what "1 smtpd process" means. In order to run 242 SMTP
> connections, Postfix needs to run 242 processes.

In master.cf:
smtp inet n - - - 1 smtpd

The "242 SMTP connections" is the jargon of the mail exploder (smtp-source)
doing the testing. That is, smtp-source makes 242 tcp connections to the
mail server and each is serviced in turn by the 1 running smtpd process.
When there are 243 tcp connections from the mail exploder, no mail is
collected (on OpenBSD).

All other process limits are as defaults. Main.cf is edited for host
and domain identification, plus a relayhost running smtp-sink. Those
exact configurations were posted at the beginning of this thread.

-Matt