-----Original Message----- From: cour...@lists.sourceforge.net [mailto:cour...@lists.sourceforge.net] On Behalf Of Matthew T. Blackmon Sent: Tuesday, November 04, 2003 1:49 AM To: cour...@lists.sourceforge.net Subject: [courier-users] What are the shutdown and wakeup timestamps in the log file?

So I have my 0.42.2 box up-and-running. But, I'm having some issues with system performance.

In my initial testing, I was able to pump through a 100KB email on SMTP in a second. That was much better than the 15-20 seconds that my previous mailserver was putting through. Excellent. So, I complete the upgrade, troubleshoot about 10 more issues that come down the pipeline, but now, performance is simply atrocious, up and down (so it seems).

In a search through the literature, I come across a piece about ESMTP timeouts. I go through the troubleshooting steps and determine that one of my internal DNS servers is failing on recursive lookups. OK, I don't have time to deal with that at the moment, so I pull the defective DNS server out of resolvers, and restart the services. Here's a log trace from me sending a 27K file to the server...

Between the client and server in this transaction is a 10Mbit connection with approx 2% RMS usage during the time in question.

Nov 4 02:39:02 debian30r1-3 courieresmtpd: started,ip=[::ffff:68.101.xx.xxx] Nov 4 02:39:48 debian30r1-3 courierd: newmsg,id=0001E95E.3FA7579B.000001DD: dns; wintermute (wsip-68-101-xx-xxx.dc.dc.cox.net [::ffff:68.101.xx.xxx]) Nov 4 02:39:48 debian30r1-3 courierd: started,id=0001E95E.3FA7579B.000001DD,from=<matt...@mydomain.org>,module =esm tp,host=somedomain.com,addr=<matt...@somedomain.com> Nov 4 02:39:48 debian30r1-3 courierd: Waiting. shutdown time=none, wakeup time=none, queuedelivering=1, inprogress=1 Nov 4 02:39:50 debian30r1-3 courieresmtp: id=0001E95E.3FA7579B.000001DD,from=<matt...@mydomain.org>,addr=<matthew. blac km...@somedomain.com>: 250 2.6.0 <cour...@debian30r1-3.internal.mydomain.com> Queued mail for delivery Nov 4 02:39:50 debian30r1-3 courieresmtp: id=0001E95E.3FA7579B.000001DD,from=<matt...@mydomain.org>,addr=<matthew. blac km...@somedomain.com>,size=34471,success: delivered: smtp.somedomain.com [57.80.xx.xxx] Nov 4 02:39:50 debian30r1-3 courieresmtp: id=0001E95E.3FA7579B.000001DD,from=<matt...@mydomain.org>,addr=<matthew. blac km...@somedomain.com>,size=34471,status: success Nov 4 02:39:50 debian30r1-3 courierd: completed,id=0001E95E.3FA7579B.000001DD Nov 4 02:39:50 debian30r1-3 courierd: Waiting. shutdown time=Tue Nov 4 03:34:44 2003, wakeup time=Tue Nov 4 03:34:44 2003, queuedelivering=0, inprogress=0

My first question is does anyone have any additional ideas on troubleshooting the ESMTP response on this? As mentioned, when I first tested it, it was great! Secondly, I note in the log this:

Nov 4 02:39:50 debian30r1-3 courierd: Waiting. shutdown time=Tue Nov 4 03:34:44 2003, wakeup time=Tue Nov 4 03:34:44 2003

Am I reading this correctly? What are the shutdown time and wakeup times representing, and might this have something to do with my performance issues?

Kind regards, Matthew

PS - did anyone receive the Debian upgrading to 42.2 guide I sent earlier? It was during the switchover from my old server, and I was torturing the new mailserver.