Hi,
I can't find any references to this problem on 2.x. I upgraded to 2.0.8 last night, and now I am getting these errors in the logs (along with the server refusing new connections):
Dec 8 09:46:52 orford dovecot: imap-login: Disconnected: Connection queue full (no auth attempts): rip=x.x.x.x, lip=x.x.x.x, TLS Dec 8 09:47:16 orford dovecot: imap-login: Disconnected: Connection queue full (no auth attempts): rip=x.x.x.x, lip=x.x.x.x, TLS handshaking
I have unsuccessfully tried to tweak my settings to prevent this problem, and any help would be appreciated. The server has plenty of power for increasing process limits, etc.
Below is the output of "dovecot -n". We have users with some _very_ large mailboxes (~400 000 messages) so some of the limits might appear excessive.:
# 2.0.8: /etc/dovecot/dovecot.conf # OS: Linux 2.6.35-gentoo-r5+ x86_64 Gentoo Base System release 2.0.1 auth_cache_size = 10 M auth_mechanisms = plain login auth_worker_max_count = 80 default_client_limit = 2048 default_process_limit = 256 default_vsz_limit = 512 M first_valid_uid = 125 last_valid_uid = 20000 listen = 127.0.0.1 x.x.x.x login_greeting = IMAP ready. mail_location = maildir:~/Maildir managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date mdbox_rotate_size = 10 M namespace { hidden = no inbox = yes list = yes location = prefix = subscriptions = yes type = private } namespace { hidden = yes list = no location = prefix = INBOX. subscriptions = yes type = private } namespace { hidden = no list = yes location = maildir:/home/shared/Maildir:CONTROL=~/Maildir/control/shared:INDEX=~/Maildir/index/shared prefix = shared. subscriptions = no type = public } passdb { args = failure_show_msg=yes driver = pam } plugin { quota = fs:User quota:user quota_warning2 = storage=80%% quota-warning 80 %u sieve = ~/dovecot.sieve sieve_dir = ~/sieve } protocols = imap pop3 service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } } service imap-login { process_min_avail = 5 } service imap { process_limit = 2048 } service managesieve-login { inet_listener sieve_deprecated { port = 2000 } } service pop3 { process_limit = 128 } ssl_cert =