I'm seeing new behavior on two previously well-working mail servers that is causing me problems. I also have a third server that is not yet exhibiting this behavior. All three servers are running Ubuntu 7.10. One of the two servers has the following Courier-MTA packages installed: [EMAIL PROTECTED]:~# dpkg --list | grep courier ii courier-authdaemon 0.59.3-2ubuntu1 ii courier-authlib 0.59.3-2ubuntu1 ii courier-authlib-mysql 0.59.3-2ubuntu1 ii courier-authlib-userdb 0.59.3-2ubuntu1 ii courier-base 0.56.0-2ubuntu2 ii courier-imap 4.1.3-2ubuntu2 ii courier-imap-ssl 4.1.3-2ubuntu2 ii courier-maildrop 0.56.0-2ubuntu2 ii courier-mta 0.56.0-2ubuntu2 ii courier-mta-ssl 0.56.0-2ubuntu2 ii courier-pop 0.56.0-2ubuntu2 ii courier-pop-ssl 0.56.0-2ubuntu2 ii courier-ssl 0.56.0-2ubuntu2
The other two had the the following Courier-MTA packages installed: [EMAIL PROTECTED]:~# dpkg --list | grep courier ii courier-authdaemon 0.59.3-2ubuntu1 ii courier-authlib 0.59.3-2ubuntu1 ii courier-authlib-userdb 0.59.3-2ubuntu1 ii courier-base 0.56.0-2ubuntu2 ii courier-mta 0.56.0-2ubuntu2 ii courier-mta-ssl 0.56.0-2ubuntu2 ii courier-ssl 0.56.0-2ubuntu2 Because of the problem, I removed Courier from one of the servers and installed Postfix. The first server is used for regular e-mail sending and receiving for about 125 accounts. The other two servers are used only for sending administrative alerts (cron job reports and the like) to myself. A few weeks ago, one of the two administrative servers started exhibiting the behavior where it would send up to four e-mails and then stop sending any more. The rest would just sit in the mail queue. What showed up in the task list (ps axf) was something like this: 4203 ? S 0:00 /usr/lib/courier/courier/courierd 16944 ? S 0:01 \_ /usr/lib/courier/courier/courierd 16945 ? S 0:00 \_ ./courieruucp 16946 ? S 0:00 \_ ./courierlocal 16947 ? S 0:00 \_ ./courierfax 16948 ? S 0:00 \_ ./courieresmtp 17455 ? R 1960:24 | \_ courieresmtp 0 flattfamily.com 17519 ? R 1946:14 | \_ courieresmtp 1 flattfamily.com 11690 ? R 639:03 | \_ courieresmtp 2 unlv.nevada.edu 26907 ? R 170:27 | \_ courieresmtp 3 lvlug.org 27056 ? R 167:02 | \_ courieresmtp 4 enshealth.com 27113 ? R 166:36 | \_ courieresmtp 5 flattfamily.com 16949 ? S 0:00 \_ ./courierdsn and what showed up in top was something like this: 11690 daemon 25 0 2464 536 532 R 16.7 0.1 639:17.33 courieresmtp 17455 daemon 25 0 2460 536 532 R 16.7 0.1 1960:38 courieresmtp 17519 daemon 25 0 2464 536 532 R 16.7 0.1 1946:28 courieresmtp 26907 daemon 25 0 2460 1120 580 R 16.7 0.1 170:41.53 courieresmtp 27056 daemon 25 0 2464 1120 580 R 16.7 0.1 167:16.21 courieresmtp 27113 daemon 25 0 2464 1100 580 R 16.7 0.1 166:50.70 courieresmtp I could not kill the processes and I could not restart the system w/o physically pressing the power button. (I would get an error message at system halt to the effect that the drive was busy.) When I restarted the server, it would send the next four messages, then hang again. There were no error messages that I could find in any of the system logs. I spent quite a while attempting to figure out what was causing the behavior but could not. My searches on the Internet came up with only a few unrelated results. I tried uninstalling Courier and reinstalling it several times (thinking I had corrupt files or something similar), even to the point of deleting all Courier files after the install and manually reconfiguring the system after the reinstall, but every time Courier would hang on four messages and stop sending any more. Finally, I totally removed Courier and installed Postfix, and I haven't had a problem since. Today, I noticed that my main mail server is exhibiting the same behavior. The examples above are from it. The second administrative mail sever has not yet started doing this, but at this point, I'm expecting it to start happening. The reason I didn't notice the mail server's behavior is because it is still sending e-mail (which the other one did not do). Those six processes are, however, using all the CPU and making everything very slow. I really do not want to go through the effort of reconfiguring the mail server with different software. I have enough other emergencies on my plate this week that I won't be finished for two or three weeks. :^) Does anyone have any clue as to what might be causing this behavior and how I can stop it? -- Jason Flatt Father of Six: http://www.flattfamily.com/ (Joseph, 15; Cramer, 13; Travis, 11; Angela; Harry, 8; and William, 2) Linux User: http://www.kubuntu.org/ Drupal Fanatic: http://drupal.org/ ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ courier-users mailing list [email protected] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
