On Thu, 2009-09-03 at 11:07 -0400, David Halik wrote:
Dovecot finally wedged silently and without complaint, becoming completely unresponsive. I had to kill -9 it this morning in order to restart the service.
Hmm. That sounds strange.
Once possibility I considered was that the dovecot user process limit was reached, but this is set to 1024, and I didn't see any errors or warnings anywhere in the logs.
login_max_processes_count = 256 max_mail_processes = 1024
max_mail_processes doesn't matter, because no imap/pop3 processes are created for failed logins.
Any suggestions on what I could tweak to prevent this from happening in the future?
login_process_per_connection=no makes it possible to handle a lot more connections. http://wiki.dovecot.org/LoginProcess