concerning dovecot settings for high volume server

[Axel Luttgens]

> Le 12 sept. 2015 à 20:53, Rajesh M a écrit :
> 
> hi
> 
> […]
> 
> i wish to allow 1500 pop3 and 1500 imap connections simultaneously.
> 
> need help regarding the settings to handle the above
> 
> imap-login, pop3-login
> imap pop3 service settings
> 
> i recently i got an error
> imap-login: Error: read(imap) failed: Remote closed connection (process_limit reached?)
> 
> […]

Hello Rajesh,

I guess you could have a look at:

	http://wiki2.dovecot.org/Services

For example, a pop3 connection requires one pop3-login process and one pop3 process (unless your are running in "high performance mode"; but this doesn’t seem to be the case).
So, you would have to adjust the process_limit setting for both of these services.

IIRC, those settings are by default set to 0 and thus take the value of default_process_limit (which in turn defaults to 100).

Of course, as others have already noted, such settings must remain within the limits configured at the system level.

HTH,
Axel