Hi,
I am facing a wierd issue on dovecot while migrating OS of the server.
I have CentOS 5.2 32bit OS , Dovecot 1.1.20 with NFS on the server. When I
am migrating it to CenOS 5.6 32bit with same Dovecot version. I compiled
the same version i.e. 1.1.20 again. Now when I check the number of
connection on this new server I can see only 8-10 connections for IMAP and
8-10 for POP3, where on old server I can still see the number of connections
crosses 500+. I checked system level configuration which I found identical,
limits set to same as old server, still no change in number of connections.
I even tried the above exercise on CentOS 5.6 64bit version. again the
result is same. I have tried all the changes/configurations I could think
of. Can you please help me to sort out this issue?
dovecot -n output ;
============================================
# 1.1.20: /usr/local/etc/dovecot.conf
# OS: Linux 2.6.28 i686 CentOS release 5.6 (Final)
syslog_facility: local0
protocols: imap pop3
listen(default): *:143
listen(imap): *:143
listen(pop3): *:110
ssl_disable: yes
disable_plaintext_auth: no
login_dir: /usr/local/var/run/dovecot/login
login_executable(default): /usr/local/libexec/dovecot/imap-login
login_executable(imap): /usr/local/libexec/dovecot/imap-login
login_executable(pop3): /usr/local/libexec/dovecot/pop3-login
login_greeting: Welcome to MailServe Popserver.
login_process_per_connection: no
max_mail_processes: 800
mail_max_userip_connections(default): 150
mail_max_userip_connections(imap): 150
mail_max_userip_connections(pop3): 300
verbose_proctitle: yes
first_valid_uid: 99
first_valid_gid: 99
mail_location: maildir:~/Maildir:INDEX=/indexes/%h:CONTROL=/indexes/%h
mmap_disable: yes
mail_nfs_storage: yes
mail_nfs_index: yes
mail_executable(default): /usr/local/libexec/dovecot/imap
mail_executable(imap): /usr/local/libexec/dovecot/imap
mail_executable(pop3): /usr/local/libexec/dovecot/pop3
mail_plugins(default): quota imap_quota
mail_plugins(imap): quota imap_quota
mail_plugins(pop3): quota
mail_plugin_dir(default): /usr/local/lib/dovecot/imap
mail_plugin_dir(imap): /usr/local/lib/dovecot/imap
mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3
pop3_no_flag_updates(default): no
pop3_no_flag_updates(imap): no
pop3_no_flag_updates(pop3): yes
pop3_client_workarounds(default):
pop3_client_workarounds(imap):
pop3_client_workarounds(pop3): outlook-no-nuls
lda:
postmaster_address: postmaster at example.com
mail_plugins: cmusieve quota mail_log
mail_plugin_dir: /usr/local/lib/dovecot/lda
log_path: /var/log/dovecot-deliver.log
auth_socket_path: /var/run/dovecot/auth-master
auth default:
worker_max_count: 5
passdb:
driver: sql
args: /usr/local/etc/dovecot-mysql.conf
userdb:
driver: sql
args: /usr/local/etc/dovecot-mysql.conf
userdb:
driver: prefetch
socket:
type: listen
client:
path: /var/run/dovecot/auth-client
mode: 432
user: nobody
group: nobody
master:
path: /var/run/dovecot/auth-master
mode: 384
user: nobody
group: nobody
============================================
Have a nice time,
Gourav Joshi
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