On 08 Mar 2011, at 18:14, Charles Marcus wrote:
On 2011-03-08 10:40 AM, Thierry de Montaudry wrote:
On 08 Mar 2011, at 13:24, Chris Wilson wrote:
There's nothing to debug in dovecot here. Your server is overloaded by about 55 times. Buy 55 times as many servers or do something about your webmail interface (maybe a separate webmail cluster).
As you can see the numbers (55.04, 29.13, 14.55) the load was busy getting higher when I took this snapshot and this was not a normal situation. Usually this machine's load is only between 1 and 4, which is quite ok for a quad core. It only happens when dovecot start generating errors, and pop3, imap and http get stuck. It went up to 200, and I was still able to stop web and mail daemons, then restart them, and everything was back to normal.
What is your webmail server (and version)? Maybe it is buggy?
Using HastyMail2-1.0. But the problem only started when we moved to dovecot 2.0.9 (from 1.10.13), without changing anything else on any of our 7 machines, and now it's happening randomly on any of them. So that's why I suspect it has to do with dovecot.