title: Passenger enterprise standalone rolling restarts slow first request
body: <p>Whenever my Passenger enterprise standalone does a rolling restart, a delay of ~6 seconds occurs for the first request(s) to the new instance of the application. Any ideas why this is the case? My guess is that it has something to do with the swapping of the socket file.</p>
  
  <p>Note: This is a Rails 3 application and I can see in the logs that the application is preloading and requests still go through quickly.</p>