Handle Azure Web Role restarts gracefully, by waiting for current requests to complete.

WebRole.cs

public override void OnStop()
{
  Trace.TraceInformation("OnStop called from WebRole");
  var rcCounter = new PerformanceCounter("ASP.NET", "Requests Current", "");

  while (rcCounter.NextValue() > 0)
  {
    Trace.TraceInformation("ASP.NET Requests Current = " + rcCounter.NextValue().ToString());
    System.Threading.Thread.Sleep(1000);
  }           
}