title: How to Detect cause of 503 Service Temporarily Unavailable error and handle it?
body: <p>i am getting the error 503 Service Temporarily Unavailable many times in my application
  and i want to detect why this error occurs, how ? if there's a log file or something like that, since i am not familiar with apache.</p>
  
  <p>second thing is that, is it possible to handle this error, that when it occurs apache is restarted ?</p>