Hi, I have a rather large dovecot setup (4 proxy only servers and 21 IMAP/POP3 servers) in production for 3 days now.
The memory usage on my proxy servers only grows over time. It looks like a memory leak somewhere in dovecot. I have a RRD graph available on demand.
Any advise on the configuration ? Timo, I have strace a process before the manual restart. If it can help just ask for.
My configuration : Linux kernel 2.6. I use MySQL as authentication back-end.
# dovecot --version 1.0.rc10 # dovecot --build-options Build options: ioloop=epoll notify=dnotify ipv6 openssl SQL drivers: mysql Passdb: checkpassword pam passwd passwd-file shadow sql Userdb: checkpassword passwd prefetch passwd-file sql static
----- config ----- protocols = pop3 imap disable_plaintext_auth = no ssl_disable = yes login_process_size = 128 login_process_per_connection = no login_processes_count = 16 login_max_connections = 512 login_greeting = ready auth_cache_size = 32768 auth_cache_ttl = 1800 auth_worker_max_count = 30 auth default { mechanisms = plain # Userdb settings are not used with proxy but there need to be something. userdb static { args = static uid=5000 gid=5000 home=/dev/null } passdb sql { args = /etc/dovecot-mysql.conf } user = root count = 1 }
-- Laurent Papier