Multi-thread cyrus delayed forking of imapd processes after connecting to master listener

Scott Lambert lambert at
Tue May 23 15:11:38 EDT 2017

I may be completely missing the point and I don't know your environment.
It looks like you may have designed in some delays if the server is
pretty busy, especially during restart.

On Fri, May 19, 2017 at 05:55:32PM +0800, Michael Hieb wrote:
> > Here are the configuration details:
> >
> > imap cmd="imapd -C /etc/ " 
> > listen="" maxchild=-1 maxforkrate=100
> >
> > imaps cmd="imapd -C /etc/ -s " 
> > listen="" maxchild=-1 maxforkrate=100

maxforkrate will limit you to 100 forks per second.  That's quite a lot
but between bad guys and reconnects of clients after a restart, that may
be limiting.  I'm not sure I understand maxforkrate without a maxchild
limit.  That's probably a lack of imagination on my part.

Maybe it would be good to prefork a few instances of each service?  

Scott Lambert                    KC5MLE                       Unix SysAdmin
lambert at

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