title: php-fpm processes increase drastically
body: <p>we've seen that some time, under no heavy traffic, the php-fpm processes under nginx start to increase drastically.
  We have 35 processes and them all of a sudden, you see CPU at 100% with 160 processes running at the same time. Last time it happened was a few seconds ago, the second last one was 2 weeks ago, pretty weird. We do not see memory problems or anything strange (too many accesses or so on).</p>
  
  <p>Do you have any idea how we can avoid creating those processes? Or what could be the cause?</p>