dovecot: lack of filehandles slows down thunderbird

[Harald Dunkel]

Hi folks,

using the current dovecot-2.3.19.1p0v0 I had to increase the limits for
dovecot's filehandles from 1024/2048 to 4096/8192. Without this change
Thunderbird (running on Linux or MacOS) was horrible unresponsive.

Question is, why were the limits decreased in /etc/login.conf.d/dovecot

        # cat /etc/login.conf.d/dovecot
        dovecot:\
                :openfiles-cur=1024:\
                :openfiles-max=2048:\
                :tc=daemon:

overriding /etc/login.conf

        dovecot:\
                :ignorenologin:\
                :datasize=infinity:\
                :maxproc=infinity:\
                :openfiles-max=4096:\
                :openfiles-cur=4096:\
                :openfiles-max=4096:\
                :openfiles-cur=4096:\
                :stacksize-cur=8M:\
                :tc=default:

?

Please note the double entries in login.conf. This is weird.


Regards

Harri