[Dovecot] "service_count = 0" for "service dict" (High-performance mode)

[Alessio Cecchi]

Hi,

I'm running dovecot 2.1.17 with "Login processes" in "High-performance 
mode" as explained here:

service imap-login {
   service_count = 1

http://wiki2.dovecot.org/LoginProcess

but i thinks I should also set "service dict" in high-performance mode 
since sometimes the number of dict processes reach the limit of 100 
(from default_process_limit=100) and I find these errors in the logs:

Sep 25 15:32:24 imap(info at xxxx), session=<z9N2SDXnIQCy71XC>: Error: 
read(/usr/local/dovecot-2.1/var/run/dovecot/dict) failed: Connection 
reset by peer
Sep 25 15:32:24 imap(service at xxxx), session=<xKxSSDXnwABb/1Ql>: Error: 
read(/usr/local/dovecot-2.1/var/run/dovecot/dict) failed: Connection 
reset by peer

or

Sep 25 15:33:48 imap(info at xxxx), session=<M8FITTXnwABb/CM9>: Warning: 
read(/usr/local/dovecot-2.1/var/run/dovecot/dict): dict lookup took 5 
seconds
Sep 25 15:33:48 imap(editoria at xxxx), session=<3LpHZTTnDgBdJwmm>: 
Warning: read(/usr/local/dovecot-2.1/var/run/dovecot/dict): dict lookup 
took 5 seconds

Do you think will be better set:

service dict {
   service_count = 0

or default_process_limit=200 (instead of 100)

Thanks

-- 
Alessio Cecchi is:
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