title: Why does Azure give me an intermittent Error 503. The service is unavailable?
body: <p>I have an Azure service that has been running for a long period of time.  It builds a word or powerpoint document based on arguments in the request and returns a uri to the build document.  This is access via a visualforce page, when you click a button, it calls the service and displays a link to the document that has just been built.  Simple.</p>
  
  <p>All of a sudden, I get an apparently random 503 Service Unavailable error.  Sometimes I click the button, no problem.  Other times a 503 error.  Each time the button triggers exactly the same request.  Does anyone know why this might be happening?</p>
  
  <p>Apparently doing the same thing over and over again and expecting a different result, is not insanity!</p>
  
  <p>Thanks for taking the time to read this.</p>