title: Building a reliable system on Google AppEngine
body: <p>Stack Overflow community who use Google AppEngine,</p>
  
  <p>Given the reliability issues with Google AppEngine, how are you handling fail-over to prevent outages?  Are you doing a back-up mirror on another platform?</p>
  
  <p>Is there a way to make your instance 'hot-swappable' to avoid issues?  Anyone come up with elegant solutions to avoid Service Issues?</p>