Varnish with mod prefork vs mpm worker with mod-fcgid

nick tailor nick.tailor at
Wed Feb 27 01:28:18 CET 2013

I believe it has to do with the new processes being spawned. You might need
to tweak the fastCGI processes to allow more request per process in one of
your confs

  MaxRequestsPerProcess       1000
  MaxProcessCount             5
  IPCCommTimeout              600
  IdleTimeout                 600

Hope that helps


Nick Tailor

On Tue, Feb 26, 2013 at 3:30 PM, Stephen Strickland
<webmaster at>wrote:

> I running a site with Drupal 7 and with apache2 installed initially I was
> using mod prefork, I was getting varnish hit rates at least high 80’s or
> middle 90s.  I changed to mpm worker with mod_fcgid and now I am now
> getting an average of 25%.****
> ** **
> Anyone out there know of anything that could be causing this?****
> _______________________________________________
> varnish-misc mailing list
> varnish-misc at
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