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Odhiambo WASHINGTON

2006-Nov-23 15:14 UTC

[Dovecot] Dovecot hung or what?

Here is my first major problem with dovecot. I am running rc15 on 
FreeBSD 6.1. I run dovecot supervised by DJB's daemontools.
I run only the pop3 service.

A colleague informed me that pop3 service was simply not responding.
They could not rcv mail. When I checked the server, tail-ing 
dovecot.log, here is what was scrolling:

[wash at nbi ~]$ tail -f /var/log/dovecot.log
dovecot: Nov 23 18:04:11 Info: pop3-login: Disconnected: Inactivity:
rip=196.200.37.94, lip=62.8.64.64
dovecot: Nov 23 18:04:11 Info: pop3-login: Disconnected: Inactivity:
rip=196.200.42.212, lip=196.200.36.2
dovecot: Nov 23 18:04:12 Info: pop3-login: Disconnected: Inactivity:
rip=196.200.35.130, lip=62.8.64.64
dovecot: Nov 23 18:04:13 Info: pop3-login: Disconnected: Inactivity:
rip=168.144.108.27, lip=62.8.64.64
dovecot: Nov 23 18:04:14 Info: pop3-login: Disconnected: Inactivity:
rip=168.144.108.8, lip=62.8.64.64
dovecot: Nov 23 18:04:17 Info: pop3-login: Disconnected: Inactivity:
rip=196.200.39.169, lip=62.8.64.64
dovecot: Nov 23 18:04:17 Info: pop3-login: Disconnected: Inactivity:
rip=41.220.126.2, lip=196.200.38.2
dovecot: Nov 23 18:04:17 Info: pop3-login: Disconnected: Inactivity:
rip=196.200.39.169, lip=62.8.64.64
dovecot: Nov 23 18:04:18 Info: pop3-login: Disconnected: Inactivity:
rip=196.200.37.174, lip=62.8.64.64
dovecot: Nov 23 18:04:19 Info: pop3-login: Disconnected: Inactivity:
rip=196.216.68.230, lip=62.8.64.64
dovecot: Nov 23 18:04:22 Info: pop3-login: Disconnected: Inactivity:
rip=196.200.45.54, lip=62.8.64.64
dovecot: Nov 23 18:04:26 Info: pop3-login: Disconnected: Inactivity:
rip=196.200.35.130, lip=62.8.64.64
dovecot: Nov 23 18:04:27 Info: pop3-login: Disconnected: Inactivity:
rip=196.200.45.54, lip=62.8.64.64
dovecot: Nov 23 18:04:28 Info: pop3-login: Disconnected: Inactivity:
rip=41.220.126.2, lip=62.8.64.64
dovecot: Nov 23 18:04:28 Info: pop3-login: Disconnected: Inactivity:
rip=196.207.23.28, lip=62.8.64.64
dovecot: Nov 23 18:04:31 Info: pop3-login: Disconnected: Inactivity:
rip=82.109.38.129, lip=62.8.64.64
dovecot: Nov 23 18:04:32 Info: pop3-login: Disconnected: Inactivity:
rip=41.222.12.121, lip=196.200.36.2
^C
[wash at nbi ~]$  su
Password:
nbi# sh /usr/local/etc/rc.d/svscan.sh stop
Stopping svscan.
nbi# sh /usr/local/etc/rc.d/svscan.sh start
Starting svscan.

I then restarted the service ....

nbi#
nbi# tail -f /var/log/dovecot.log
dovecot: Nov 23 18:04:47 Info: pop3-login: Disconnected: Shutting down:
rip=196.200.37.126, lip=62.8.64.64
dovecot: Nov 23 18:04:47 Info: pop3-login: Disconnected: Shutting down:
rip=196.200.39.74, lip=62.8.64.64
dovecot: Nov 23 18:04:47 Info: pop3-login: Disconnected: Shutting down:
rip=196.200.35.146, lip=62.8.64.64
dovecot: Nov 23 18:04:47 Info: pop3-login: Disconnected: Shutting down:
rip=196.200.37.42, lip=62.8.64.64
dovecot: Nov 23 18:04:47 Info: pop3-login: Disconnected: Shutting down:
rip=196.200.46.122, lip=62.8.64.64
dovecot: Nov 23 18:04:50 Info: Dovecot v1.0.rc15 starting up


After this, dovecot was now answering as expected.

1. What could the problem be?
2. How can I reproduce it.

PS: This has never happened ever since with the previous versions.



-Wash

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It's lucky you're going so slowly, because you're going in the wrong
direction.

Ivan Arteaga

2006-Nov-23 20:56 UTC

head link

[Dovecot] Dovecot hung or what?

Hello List,

I have a dovecot server working with sendmail in virtual sites
configuration, it is working really well. Now I have to work with pop3s
(ssl) and I would like to know if it's possible to define something like:

Server = example.com
Address = 1.1.1.1
Certificate = certificateDirPath

I will appreciate any suggestion, my dovecot version is 1.0

Thanks in advance.


--Ivan.

J.M. Maurer

2006-Nov-27 09:42 UTC

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[Dovecot] Dovecot hung or what?

On Thu, 2006-11-23 at 18:14 +0300, Odhiambo WASHINGTON
wrote:> Here is my first major problem with dovecot. I am running rc15 on 
> FreeBSD 6.1. I run dovecot supervised by DJB's daemontools.
> I run only the pop3 service.
> 
> A colleague informed me that pop3 service was simply not responding.
> They could not rcv mail. When I checked the server, tail-ing 
> dovecot.log, here is what was scrolling:
[snip]

I basically see the same with rc15, using imap. It doesn't respond to
anything anymore.

Clueless what is causing it though, I'll try to get some debugging info.


  Marc

Timo Sirainen

2006-Dec-03 17:23 UTC

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[Dovecot] Dovecot hung or what?

On Thu, 2006-11-23 at 18:14 +0300, Odhiambo WASHINGTON
wrote:> Here is my first major problem with dovecot. I am running rc15 on 
> FreeBSD 6.1. I run dovecot supervised by DJB's daemontools.
> I run only the pop3 service.
> 
> A colleague informed me that pop3 service was simply not responding.
> They could not rcv mail. When I checked the server, tail-ing 
> dovecot.log, here is what was scrolling:
> 
> [wash at nbi ~]$ tail -f /var/log/dovecot.log
> dovecot: Nov 23 18:04:11 Info: pop3-login: Disconnected: Inactivity:
rip=196.200.37.94, lip=62.8.64.64
> dovecot: Nov 23 18:04:11 Info: pop3-login: Disconnected: Inactivity:
rip=196.200.42.212, lip=196.200.36.2
Did you have auth_verbose=yes? It might have shown something more.

Also you could have tried to do telnet localhost pop3 and try to login
manually, and see where it got stuck.
> 1. What could the problem be?
I'm guessing dovecot-auth got stuck. What passdb and userdb do you use?
> 2. How can I reproduce it.
Dunno. :)

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