[Dovecot] fd limit 1024 is lower in dovecot-1.1.1

[Zhang Huangbin]

Hi, all.

I just upgrade from 1.0.15 to 1.1.1 in a test box(RHEL 5.2, x86_64).

after upgrade, i got this warning msg:

----8< ----
# /etc/init.d/dovecot restart
Stopping Dovecot Imap:                                     [  OK  ]
Starting Dovecot Imap: Warning: fd limit 1024 is lower than what Dovecot 
can use under full load (more than 1280). Either grow the limit or 
change login_max_processes_count and max_mail_processes settings
                                                           [  OK  ]
----8< ----

but i changed either login_max_processes_count and max_mail_processes
to 2048, it raised the same msg. How can i solove this issue?

Thanks very much.

My dovecot -n output:

----8<----
# dovecot -n
# 1.1.1: /etc/dovecot.conf
Warning: fd limit 1024 is lower than what Dovecot can use under full 
load (more than 1280). Either grow the limit or change 
login_max_processes_count and max_mail_processes settings
log_path: /var/log/dovecot.log
protocols: pop3 pop3s imap imaps
listen: *
ssl_cert_file: /etc/pki/dovecot/certs/dovecotCert.pem
ssl_key_file: /etc/pki/dovecot/private/dovecotKey.pem
login_dir: /var/run/dovecot/login
login_executable(default): /usr/libexec/dovecot/imap-login
login_executable(imap): /usr/libexec/dovecot/imap-login
login_executable(pop3): /usr/libexec/dovecot/pop3-login
max_mail_processes: 1024
mail_uid: 2000
mail_gid: 2000
mail_location: maildir:/%Lh/%Ld/%Ln/:INDEX=/%Lh/%Ld/%Ln/
mail_executable(default): /usr/libexec/dovecot/imap
mail_executable(imap): /usr/libexec/dovecot/imap
mail_executable(pop3): /usr/libexec/dovecot/pop3
mail_plugins(default): quota imap_quota
mail_plugins(imap): quota imap_quota
mail_plugins(pop3): quota
mail_plugin_dir(default): /usr/lib64/dovecot/imap
mail_plugin_dir(imap): /usr/lib64/dovecot/imap
mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3
pop3_client_workarounds(default):
pop3_client_workarounds(imap):
pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh
auth default:
  mechanisms: plain login
  user: vmail
  passdb:
    driver: sql
    args: /etc/dovecot-mysql.conf
  userdb:
    driver: sql
    args: /etc/dovecot-mysql.conf
  socket:
    type: listen
    client:
      path: /var/spool/postfix/private/auth
      mode: 432
      user: postfix
      group: postfix
    master:
      path: /var/run/dovecot/auth-master
      mode: 432
      user: vmail
      group: vmail

-- 
Best Regards.

Zhang Huangbin

- Mail Server Solution for Red Hat(R) Enterprise Linux & CentOS 5.x:
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