[Dovecot] log message about client_limit may in fact be due to ulimit

[Timo Sirainen]

On 15.2.2012, at 4.35, Timo Sirainen wrote:

>> Feb 14 15:22:02 vmmailproxy1 dovecot: master: Warning: service(anvil): client_limit (100000) reached, client connections are being dropped
>> Feb 14 15:22:18 vmmailproxy1 dovecot: master: Warning: service(ipc): client_limit (100000) reached, client connections are being dropped
> 
> This indicate some kind of a connection leak.. There shouldn't be so many connections. Each login process is supposed to create only one connection to anvil and one connection to ipc. How many open fds do you see in those processes currently?

Oh, this is most likely related because you're not running in high-performance login process mode, unlike pretty much everyone else running proxies: http://wiki2.dovecot.org/LoginProcess

Lets see if I can reproduce this then..