Polling duplex does not scale... what's the alternative?

Posted by user80855 on Stack Overflow See other posts from Stack Overflow or by user80855
Published on 2009-11-01T00:31:42Z Indexed on 2010/04/01 3:53 UTC
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Silverlight

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long-polling

Our tests showed that the polling duplex binding simply does not scale and can not be used on a service within a web-farm or even a web garden. We have looked at TCP/IP sockets for a client push method, but the firewall issue is does allow us to use sockets.

I was wondering what is the alternative "free" solution to this problem? allowing us to scale and allowing us to push data to client...

I have also tried the solution in this article http://tomasz.janczuk.org/2009/09/scale-out-of-silverlight-http-polling.html but at the end, there was too much polling on a database, and performance was affected.

Our Silverlight application need a pub/sub design, but it needs to be reliable and scalable... any ideas?

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