title: WARNING: [pool www] seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning
body: <p>I have a CentOS server. System is nginx/php-fpm. It has 16GB RAM.
  CPUs : 8</p>
  <p>CPU Frequency: 2660.203 MHz</p>
  <p><strong>Why am I getting this error in my error log?</strong></p>
  <p><em>php-fpm/error.log</em>:</p>
  <blockquote>
  <p>[02-Aug-2014 17:14:04] WARNING: [pool www] seems busy (you may need to increase pm.start_servers, or
  pm.min/max_spare_servers), spawning 8 children, there are 0 idle, and 21 total children</p>
  </blockquote>
  <p><strong>This is my php-fpm configuration for the www pool:</strong></p>
  <p><em>php-fpm/www.conf</em>:</p>
  <blockquote>
  <p>pm = dynamic</p>
  <p>pm.max_children = 32768</p>
  <p>pm.start_servers = 10</p>
  <p>pm.min_spare_servers = 10</p>
  <p>pm.max_spare_servers = 10</p>
  <p>pm.max_requests = 5000</p>
  </blockquote>
  <p><strong>How to fix the problem?</strong></p>