On Mon, Sep 09, 2013 at 11:13:36AM +0200, Patrick Westenberg wrote: > on Saturday I upgraded two dovecot servers from squeeze to wheezy > and dovecot from 2.1.x to 2.2.5 (compiled from sources). After the > upgrade everything worked fine at first. > > On Sunday Morning I recognized these errors (they occured after a > reload for logging purpose on midnight) on one server: > > director: Error: Ring SYNC appears to have got lost, resending > > After reloading/restarting both dovecot services the error occured > on both servers. After some research I deleted some "zlib"-File > which isn't needed anymore in dovecot 2.2.x and reinstalled > dovecot. The error message disappeared. > > Today the error occured again (after the reload on midnight) and > again on one node only until reloading/restarting the other node > too. However, there is an additional error message: > > Sep 09 10:27:07 director: Error: Ring SYNC appears to have got > lost, resending > Sep 09 10:27:10 director: Panic: file login-connection.c: line 88 > (login_host_callback): assertion failed: (strncmp(request->line, > "OK\t", 3) == 0)
I had the same issue (CentOS 6.4 upgraded with third-party RPMs) on Thu/Fri, and I asked Timo about it in IRC. Apparently a 2.2.6 release is due soon. He gave me two hg links claimed to fix it: http://hg.dovecot.org/dovecot-2.2/rev/f7a37b169f4a http://hg.dovecot.org/dovecot-2.2/rev/9531ec8afe8b However I did have the lost ring SYNC error recur after the cluster was upgraded to the RPM packages currently in Dovecot's EE repo (non-free, pay for access) which does include these fixes. Restart of all director instances worked for me. Actually I stopped all, then started all. So far so good. We're going to go live with this cluster soon, I hope. > node1: > # 2.2.5: /usr/local/etc/dovecot/dovecot.conf > # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.1 > auth_mechanisms = plain login > director_mail_servers = 172.17.1.2 172.17.1.1 > director_servers = 172.17.1.3 172.17.1.4 > director_user_expire = 5 mins > lmtp_proxy = yes > log_path = /var/log/dovecot.log > 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 ihave > protocols = imap pop3 lmtp sieve > service auth { > unix_listener /var/spool/postfix/private/auth { > group = postfix > mode = 0666 > user = postfix > } > unix_listener auth-userdb { > user = dovecot > } > } > service director { > fifo_listener login/proxy-notify { > mode = 0666 > } > inet_listener { > address = 172.17.1.3 > port = 9090 > } > unix_listener director-userdb { > mode = 0600 > } > unix_listener login/director { > mode = 0666 > } > } > service imap-login { > executable = imap-login director > } > service lmtp { > inet_listener lmtp { > address = 172.17.1.3 > port = 24 > } > } > service managesieve-login { > executable = managesieve-login director > inet_listener sieve { > port = 4190 > } > } > service pop3-login { > executable = pop3-login director > } > ssl_cert = </etc/ssl/certs/wildcard.xxx.crt > ssl_key = </etc/ssl/private/wildcard.xxx.key > protocol !smtp { > passdb { > args = proxy=y nopassword=y starttls=any-cert > driver = static > } > } > protocol smtp { > passdb { > args = /usr/local/etc/dovecot/dovecot-sql.conf.ext > driver = sql > } > userdb { > args = /usr/local/etc/dovecot/dovecot-sql.conf.ext > driver = sql > } > } > protocol lmtp { > auth_socket_path = director-userdb > } > > > node2: > # 2.2.5: /usr/local/etc/dovecot/dovecot.conf > # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.1 > auth_mechanisms = plain login > director_mail_servers = 172.17.1.2 172.17.1.1 > director_servers = 172.17.1.4 172.17.1.3 > director_user_expire = 5 mins > lmtp_proxy = yes > log_path = /var/log/dovecot.log > 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 ihave > protocols = imap pop3 lmtp sieve > service auth { > unix_listener /var/spool/postfix/private/auth { > group = postfix > mode = 0666 > user = postfix > } > unix_listener auth-userdb { > user = dovecot > } > } > service director { > fifo_listener login/proxy-notify { > mode = 0666 > } > inet_listener { > address = 172.17.1.4 > port = 9090 > } > unix_listener director-userdb { > mode = 0600 > } > unix_listener login/director { > mode = 0666 > } > } > service imap-login { > executable = imap-login director > process_min_avail = 2 > service_count = 0 > vsz_limit = 128 M > } > service lmtp { > inet_listener lmtp { > address = 172.17.1.4 > port = 24 > } > } > service managesieve-login { > executable = managesieve-login director > inet_listener sieve { > port = 4190 > } > } > service pop3-login { > executable = pop3-login director > } > ssl_cert = </etc/ssl/certs/wildcard.xxx.crt > ssl_key = </etc/ssl/private/wildcard.xxx.key > protocol !smtp { > passdb { > args = proxy=y nopassword=y starttls=any-cert > driver = static > } > } > protocol smtp { > passdb { > args = /usr/local/etc/dovecot/dovecot-sql.conf.ext > driver = sql > } > userdb { > args = /usr/local/etc/dovecot/dovecot-sql.conf.ext > driver = sql > } > } > protocol lmtp { > auth_socket_path = director-userdb > } > -- http://rob0.nodns4.us/ -- system administration and consulting Offlist GMX mail is seen only if "/dev/rob0" is in the Subject: