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

Daniel L. Miller dmiller at amfes.com
Sun Jun 29 23:04:38 EEST 2008

Zhang Huangbin wrote:
> 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?
I'm just guessing - but reading that warning it appears to me that 
Dovecot is saying that as it is configured, it can consume more O/S 
resources (I assume fd is "file descriptors") than the O/S is currently 
configured for.  So you need to DECREASE your dovecot max processes to 
decrease the (potential) system demands - or increase your O/S settings.


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