On 16.12.2011, at 14.06, Alessio Cecchi wrote:

> 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.

They need to be high enough to handle all the concurrent login / SSL 
connections.

> I don't know what value to set login_max_processes_count.

This doesn't matter so much as login_processes_count. In normal operation the 
login_processes_count should be around 1-2x of the number of CPU cores. There's 
no reason to create more processes, so the login_max_process_count might as 
well be the same as login_processes_count. The login_max_connections then just 
needs to be high enough.

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