title: Intensive PHP script failing w/ "The timeout specified has expired" error / ap_content_length_filter
body: <p>Running a MySQL intensive PHP script that is failing. Apache log reports this:</p>
  
  <pre><code>[Wed Jan 13 00:20:10 2010] [error] [client xxx.xx.xxx.xxxx] (70007)
  The timeout specified has expired:
  ap_content_length_filter: apr_bucket_read() failed,
  referer: http://domain.com/script.php
  </code></pre>
  
  <p>Tried putting <code>set_time_limit(0)</code> at the top.</p>
  
  <p>Also tried <code>set_time_limit(0)</code></p>
  
  <p>Neither fixed the timeout. </p>
  
  <p>Is there some specific timeout limit I can up in <code>http.conf</code> (or elsewhere) to prevent this? </p>