title: why is my session file getting deleted from my tmp folder?
body: <p>I have a cookie that appears to be getting created correctly, listed in chrome as</p>
  
  <pre><code>Created:    Tuesday, January 22, 2013 4:17:01 PM
  Expires:    Thursday, May 2, 2013 5:17:22 PM
  </code></pre>
  
  <p>I see the session file in the tmp folder on my server, and I can close and re-open the browser and remain logged in. However, after several hours of inactivity, the session file appears to get deleted from the tmp folder.</p>
  
  <p>I solved a previous problem where the session was getting overwritten (session file still existed, but size was 0 bytes) because a script called by jquery function was not preserving the session data. However, in this case the session file disappears.</p>
  
  <p>How can I fix this problem?</p>