I am using Debian testing, and exim -bV tells me:
Exim version 4.34 #1 built 20-Nov-2004 11:32:14
Copyright (c) University of Cambridge 2004
Berkeley DB: Sleepycat Software: Berkeley DB 3.2.9: (May 26, 2004)...
Since the new year I have been suffering a problem with too many
connections from my backup MX. Somehow all the connections stay open,
even if I run an /etc/init.d/exim4 restart.
Consequently I have added the following lines to my conf file:
smtp_accept_max = 50
smtp_accept_max_per_host = 25
However the problem is still happening, and requires me to take the
following steps to solve the problem temporarily:
- stop the daemon
- list all still-running smtp processes
- manually kill all still-running smtp processes
- start the daemon
The isp is using sendmail.
Please help!
Rory
I don't know if this is associated with a timeout problem:
2005-01-06 10:43:11 SMTP command timeout on connection from mail2.isp.net
2005-01-06 10:43:56 SMTP command timeout on connection from mail1.netservers.co.uk
2005-01-06 10:46:52 SMTP command timeout on connection from mail2.isp.net
2005-01-06 10:55:51 SMTP command timeout on connection from mail2.isp.net
2005-01-06 11:00:55 SMTP command timeout on connection from mail2.isp.net
2005-01-06 11:13:19 SMTP command timeout on connection from mail2.isp.net
2005-01-06 11:42:32 SMTP command timeout on connection from mail2.isp.net
2005-01-06 11:57:09 SMTP command timeout on connection from mail2.isp.net
2005-01-06 12:11:08 SMTP command timeout on connection from mail2.isp.net
2005-01-06 12:11:10 SMTP command timeout on connection from mail2.isp.net
2005-01-06 12:34:54 SMTP command timeout on connection from mail.uklinux.net
2005-01-06 16:36:53 SMTP command timeout on connection from mail1.anotherisp.co.uk
2005-01-06 18:41:50 SMTP command timeout on connection from mail2.isp.net
2005-01-06 19:34:42 SMTP command timeout on connection from mail2.isp.net
2005-01-06 23:35:32 SMTP command timeout on connection from mail1.netservers.co.uk
lsof -i shows lots of exim4 processes running (truncated list show below)
exim4 6162 Debian-exim 1u IPv4 649700 TCP *:smtp (LISTEN)
exim4 6292 Debian-exim 3u IPv4 655155 UDP myserver:35884->ns1.myisp.net:domain
exim4 6304 Debian-exim 0u IPv4 655292 TCP myserver:smtp->mail2.myisp.net:49602 (CLOSE_WAIT)
exim4 6304 Debian-exim 2u IPv4 655292 TCP myserver:smtp->mail2.myisp.net:49602 (CLOSE_WAIT)
exim4 6304 Debian-exim 3u IPv4 655313 UDP myserver:35888->ns1.myisp.net:domain
exim4 6399 Debian-exim 0u IPv4 656297 TCP myserver:smtp->mail2.myisp.net:50043 (CLOSE_WAIT)
exim4 6399 Debian-exim 2u IPv4 656297 TCP myserver:smtp->mail2.myisp.net:50043 (CLOSE_WAIT)
exim4 6399 Debian-exim 3u IPv4 656323 UDP myserver:35894->ns1.myisp.net:domain
exim4 6453 Debian-exim 0u IPv4 656680 TCP myserver:smtp->mail2.myisp.net:50146 (CLOSE_WAIT)
exim4 6453 Debian-exim 2u IPv4 656680 TCP myserver:smtp->mail2.myisp.net:50146 (CLOSE_WAIT)
exim4 6453 Debian-exim 3u IPv4 656699 UDP myserver:35896->ns1.myisp.net:domain
exim4 6461 Debian-exim 0u IPv4 656765 TCP myserver:smtp->mail2.myisp.net:50192 (CLOSE_WAIT)
exim4 6461 Debian-exim 2u IPv4 656765 TCP myserver:smtp->mail2.myisp.net:50192 (CLOSE_WAIT)
exim4 6461 Debian-exim 3u IPv4 656781 UDP myserver:35897->ns1.myisp.net:domain
exim4 6472 Debian-exim 0u IPv4 656862 TCP myserver:smtp->mail2.myisp.net:50251 (CLOSE_WAIT)
exim4 6472 Debian-exim 2u IPv4 656862 TCP myserver:smtp->mail2.myisp.net:50251 (CLOSE_WAIT)
exim4 6472 Debian-exim 3u IPv4 656881 UDP myserver:35898->ns1.myisp.net:domain
exim4 6794 Debian-exim 0u IPv4 659744 TCP myserver:smtp->mail2.myisp.net:51021 (CLOSE_WAIT)
exim4 6794 Debian-exim 2u IPv4 659744 TCP myserver:smtp->mail2.myisp.net:51021 (CLOSE_WAIT)
exim4 6794 Debian-exim 3u IPv4 659782 UDP myserver:35905->ns1.myisp.net:domain
exim4 6863 Debian-exim 0u IPv4 660228 TCP myserver:smtp->mail2.myisp.net:51132 (CLOSE_WAIT)
exim4 6863 Debian-exim 2u IPv4 660228 TCP myserver:smtp->mail2.myisp.net:51132 (CLOSE_WAIT)
exim4 6863 Debian-exim 3u IPv4 660252 UDP myserver:35910->ns1.myisp.net:domain
exim4 7154 Debian-exim 0u IPv4 662859 TCP myserver:smtp->mail2.myisp.net:52017 (ESTABLISHED)
exim4 7154 Debian-exim 2u IPv4 662859 TCP myserver:smtp->mail2.myisp.net:52017 (ESTABLISHED)
exim4 7154 Debian-exim 3u IPv4 662891 UDP myserver:35920->ns1.myisp.net:domain
exim4 7181 Debian-exim 0u IPv4 663142 TCP myserver:smtp->mail2.myisp.net:52118 (ESTABLISHED)
exim4 7181 Debian-exim 2u IPv4 663142 TCP myserver:smtp->mail2.myisp.net:52118 (ESTABLISHED)
exim4 7181 Debian-exim 3u IPv4 663152 UDP myserver:35923->ns1.myisp.net:domain
...and so on...
ps aux shows all exim processes after restarting it an hour before.
Debian- 6162 0.0 0.2 8488 2556 ? Ss 13:06 0:00 /usr/sbin/exim4 -bd -q30m
Debian- 6292 0.0 0.2 8500 2692 ? S 13:11 0:00 /usr/sbin/exim4 -bd -q30m
Debian- 6304 0.0 0.2 8500 2692 ? S 13:12 0:00 /usr/sbin/exim4 -bd -q30m
Debian- 6399 0.0 0.2 8500 2692 ? S 13:35 0:00 /usr/sbin/exim4 -bd -q30m
Debian- 6453 0.0 0.2 8500 2692 ? S 13:42 0:00 /usr/sbin/exim4 -bd -q30m
Debian- 6461 0.0 0.2 8500 2692 ? S 13:45 0:00 /usr/sbin/exim4 -bd -q30m
Debian- 6472 0.0 0.2 8500 2692 ? S 13:48 0:00 /usr/sbin/exim4 -bd -q30m
Debian- 6794 0.0 0.2 8508 2760 ? S 14:35 0:00 /usr/sbin/exim4 -bd -q30m
Debian- 6863 0.0 0.2 8500 2692 ? S 14:43 0:00 /usr/sbin/exim4 -bd -q30m
Debian- 7154 0.0 0.2 8500 2692 ? S 15:25 0:00 /usr/sbin/exim4 -bd -q30m
Debian- 7181 0.0 0.2 8500 2692 ? S 15:30 0:00 /usr/sbin/exim4 -bd -q30m
Debian- 7256 0.0 0.2 8508 2760 ? S 15:36 0:00 /usr/sbin/exim4 -bd -q30m
Debian- 7297 0.0 0.2 8496 2592 ? S 15:42 0:00 /usr/sbin/exim4 -bd -q30m
Debian- 7324 0.0 0.2 8504 2688 ? S 15:48 0:00 /usr/sbin/exim4 -bd -q30m
Debian- 7330 0.0 0.2 8500 2692 ? S 15:50 0:00 /usr/sbin/exim4 -bd -q30m
Debian- 7393 0.0 0.2 8508 2760 ? S 16:04 0:00 /usr/sbin/exim4 -bd -q30m
--
Rory Campbell-Lange
<rory@???>
<
www.campbell-lange.net>
