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=<[EMAIL PROTECTED]>,module=esm tp,host=somedomain.com,addr=<[EMAIL PROTECTED]> 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=<[EMAIL PROTECTED]>,addr=<matthew.blac [EMAIL PROTECTED]>: 250 2.6.0 <[EMAIL PROTECTED]> Queued mail for delivery Nov 4 02:39:50 debian30r1-3 courieresmtp: id=0001E95E.3FA7579B.000001DD,from=<[EMAIL PROTECTED]>,addr=<matthew.blac [EMAIL PROTECTED]>,size=34471,success: delivered: smtp.somedomain.com [57.80.xx.xxx] Nov 4 02:39:50 debian30r1-3 courieresmtp: id=0001E95E.3FA7579B.000001DD,from=<[EMAIL PROTECTED]>,addr=<matthew.blac [EMAIL PROTECTED]>,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. ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. Does SourceForge.net help you be more productive? Does it help you create better code? SHARE THE LOVE, and help us help YOU! Click Here: http://sourceforge.net/donate/ _______________________________________________ courier-users mailing list [EMAIL PROTECTED] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
