From mboxrd@z Thu Jan  1 00:00:00 1970
Message-Id: <200411162109.iAGL9ZJ08233@augusta.math.psu.edu>
To: Russ Cox <russcox@gmail.com>,
	Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] Weird timeout thing in smtpd? 
In-Reply-To: Your message of "Tue, 16 Nov 2004 07:31:15 EST."
	<ee9e417a041116043130abf42@mail.gmail.com> 
Date: Tue, 16 Nov 2004 16:09:35 -0500
From: Dan Cross <cross@math.psu.edu>
Cc: 
Topicbox-Message-UUID: 0380e3d0-eace-11e9-9e20-41e7f4b1d025

Russ Cox <russcox@gmail.com> writes:
> 
> > So, the question is: what would cause send to take a *really* long
> > time?  I mean, on the order of seconds....  And, more to the point,
> > how can I fix that?
> 
> run send by hand and then run acid on it and look around.  ;-)

Following Russ's suggestion, we discovered that send was hanging
out waiting for /mail/lib/qmail to finish, which was in turn waiting
on runq.  On systems with backlogged mail, runq can take a long time
to complete.  Running runq in the background makes the problem go
away.  The fix is now on sources.

	- Dan C.