similar to: login_processes_count & login_max_processes_count question

Any suggestions on sizing login_process_size and login_processes_count for a server expected to be doing 100 to 200 simultaneous connections? Is there a way to separate login_processes_count between imap and pop? I would like to have at least 50 imap processes ready, but we rarely have any more than 5 to 10 pop connections. Would be a shame to have 40+ pop login processes doing nothing most

Hi, I'm working for tuning a busy cluster of dovecot servers. Heach server as 4 core, 8GB of RAM and provide POP3 and IMAP access to mailbox. OS is Debian 6.0 and dovecot version is 1.2.15. I am unsure how to set "login_max_processes_count" and "login_max_connections" for reach the best situation when login_process_per_connection is set to no. I don't know what

Hi list! I'm a little confused. I have set "login_process_per_connection = yes" and "login_processes_count = 1", and this is how my pstree looks when nobody is connected: dovecot -,- dovecot-auth `- imap-login However, when I connect with a client it looks like this: dovecot -,- dovecot-auth |- imap `- 2*[imap-login] I

>From /var/log/auth.log (Dovecot 1.1.4 on Ubuntu 8.10): Feb 10 08:29:06 home dovecot-auth: PAM unable to dlopen(/lib/security/pam_ck_connector.so): libdbus-1.so.3: failed to map segment from shared object: Cannot allocate memory Feb 10 08:29:06 home dovecot-auth: PAM adding faulty module: /lib/security/pam_ck_connector.so English, please? :) Strangely, it seemed to disappear after increasing

Hi, Im using dovecote as my IMAP interface. However i do have a lot of imap instances. its only 7 user using the system as i get this. please advice. 1230 ? S 0:00 imap-login 1309 ? S 0:00 imap-login 1387 ? S 0:00 imap-login 1388 ? S 0:00 imap-login 1389 ? S 0:00 imap-login 1390 ? S 0:00 imap-login 1391 ? S

Hi, We have our user homedirs on nfs so I enabled nfs parameters in dovecot.conf. Everything works fine but when I want to delete a homedir of a user I can't delete it because I can't remove the .nfs files in the Maildir. I don't want to stop dovecot, remove the homedir and start dovecot. Is there another way to accomplish this. Thanks, Martijn # 1.2.12:

Hi Timo/all Help me please, i am in the process of migrating courier to dovecot 1.1.14. I want to do migration as users loging so i am using this script * http://www.dovecot.org/tools/courier-dovecot-migrate.pl *, When i do use post-logging script to migrate* POP3*, its downloading messages again (*Duplicating messages)* , as some of our users prefer to leave messages on server. If i run the

Hi using dovecot 1.0.10 with pop/imap, using maildir, with 2000+ users mostly using pop but many using imap. Once in a great while I have problems with dovecot pop timing out. If I telnet to port 110 it just takes forever to come up or it doesn't at all, the samething happens on the imap port although 110 is always worst. At 1st when troubleshooting I was not sure what was causing the

Hello, I'm using dovecot version 1.0.13 on reiserfs on hardware RAID-0, but I'm getting the following error in the logs every time one user tries to access his old mails in the .Sent directory: dovecot: 2008-06-23 15:09:46 Error: IMAP(marek.chajecki): Invalid data in file /var/mail/Maildir/marek.chajecki/.Sent/dovecot-uidlist As a result he fails to get access to the emails in this

Hello, when running diff for 'dovecot -n' outputs from beta10 and beta11(for the same config file), I noticed that 'dovecot -n' beta11 output does not show anymore the following parameters, which are set to non-default values(and which 'dovecot -a' shows): login_processes_count login_max_processes_count first_valid_uid first_valid_gid cache_size cache_ttl

I'm having a problem with mbox snarf not looking at /var/spool/mail/ when in idle mode thus never giving me a RECENT line even though there are new messages in /var/spool/mail/ . Here are the imap commands to reproduce the problem: 1 login userid password 2 select inbox 3 idle When I run "select inbox" it does see my messages in /var/spool/mail/ and moves them over fine.

Hi, It happens when I try to convert this config (with the dovecot 2.0 beta4 release) : test-mail:/tmp# dovecot -n -c ./dovecot.old.conf # 1.2.11: ./dovecot.old.conf # OS: Linux 2.6.26-2-686-bigmem i686 Debian 5.0.4 log_path: /var/log/dovecot.log info_log_path: /var/log/dovecot_info.log protocols: imap listen: 127.0.0.1:30143 disable_plaintext_auth: no login_dir: /var/run/dovecot/login

Hello, sometimes we get the following errors on out dovecot proxies: dovecot: May 27 20:06:10 Info: imap-login: Disconnected: Connection queue full (no auth attempts): REMOTE=<IP> LOCAL=<IP> TLS handshaking dovecot: May 27 20:06:10 Info: imap-login: Disconnected: Connection queue full (no auth attempts): REMOTE=<IP> LOCAL=<IP> TLS handshaking dovecot: May 27 20:06:10

Hello, Our server reach today the login_max_processes_count. Dovecot works well and don't accept any new connection. But it doesn't log anything about this problem : we are blind why the connection is refused for the clients. Could you add a log when the connection limit is reached or (maybe better) a log with the occupation for the beginning of each connection ? Thanks Dom Dovecot

I got Dual Core Intel Xeon CPU 3.00GHz, over 1000 mailbox and almost 1 dovecot login / second (peak time). Server stats says that load is continually over 2 and cpu usage is 60%. top says that imap is making this load. virtual users are in mysql database and mysqld is running on another server (this server is ok). Do I need better CPU or is there something going on that I do not understand? #

Hi, I'm a Dovecot newbie and have some problems with the configuration/the resulting interoperability. My setup looks like this: I receive my mail using qmail-ldap and sort it with a number of means into ~/Mailbox/ (= INBOX) and ~/Mail/folder/ for various values of 'folder' (generally one folder per mailing list). The sorting is done via .qmail-* files, LDAP entries, and

I think today just due to increased use, my mail servers hit login_max_processes_count. It wasn't obvious what was happening, logins just weren't acting like they should and sometimes would get disconnected before given a prompt from the server. Something made me think to check if I had too many of certain dovecot processes and I found I had 128 imap-login processes on both servers,

# dovecot -n # 1.1.20: /etc/dovecot.conf # OS: Linux 2.6.18-8.el5xen x86_64 CentOS release 5.2 (Final) ext3 protocols: imaps imap listen: * ssl_ca_file: /etc/ssl/ca/ca-bundle.crt ssl_cert_file: /etc/ssl/crt/server.crt ssl_key_file: /etc/ssl/key/server.key login_dir: /var/run/dovecot/login login_executable: /usr/libexec/dovecot/imap-login login_processes_count: 64 login_max_processes_count: 2048

I'm in the process of rolling out new setups with dovecot on CentOS 5.2 and I notice that dovecot doesn't handle the brute-force attacks too nice. I reduced the limit a bit to some reasonable looking value: login_max_processes_count = 32 to stop them earlier and the number of processes stops at that figure when an attack happens. However, it stays at this count for hours although the

Hello, dovecot crashes when it receives -HUP signal. It happens always if there was some activity - for example, if I start dovecot, check any account through POP3 and then send -HUP to dovecot process, it crashes with the following log entry: segfault at 00000008 eip 0804d3fb esp bfdd3860 error 4 If there were no activity at all since starting, it does not crash. my dovecot -n output: #