title: What's holding up my PHP script?
body: <p>We've got a PHP crawler running on our web server. When the crawler is running, there are no cpu, memory or network bandwidth spikes. Everything is normal. But our website (also PHP), hosted on the same server, stops responding. Basically the crawler blocks any other php script from running.</p>
  
  <p>EDIT:</p>
  
  <p>** fsockopen is being used to download files to crawler! **</p>