title: Scale out SignalR without Redis for a high-messaging traffic Web app
body: <p>In <a href="http://channel9.msdn.com/Events/Build/2013/3-502" rel="noreferrer">this video</a> on channel9.mmsdn.com about SignalR, the lecturer does not recommend using Redis for applications that needs to deliver a very high amount of concurrent messages. He suggested other three theoratical alternatives but without any implementation guide. I want to how can I scale out Signalr on commudity machines <strong>on Amazon Web Services</strong> and/or whether there is already a ready open source solution available.</p>
  
  <p><a href="http://www.asp.net/signalr/overview/performance-and-scaling/scaleout-in-signalr" rel="noreferrer">From asp.net:</a></p>
  
  <blockquote>
    <p>Using a backplane, the maximum message throughput is lower than it is
    when clients talk directly to a single server node. That's because the
    backplane forwards every message to every node, so the backplane can
    become a bottleneck.</p>
  </blockquote>
  
  <p>The lecturer explained in his lecture that Redis is can be the bottleneck. I am aware of the Windows Serve Service Bus on Windows Azure, but I intend to develop my project for AWS. Thanks.</p>