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How are you using workflow in your solutions

Posted By:      Posted Date: September 07, 2010    Points: 0   Category :WPF
Hi All, I've been going through many trials and tribulations architecting a solution for some department level workflow applications focusing around ASP.Net hosting.  For these apps my design is to have two load balanced web servers each hosting the workflow runtime and referencing a single SQL Server persistence store on a fail over cluster.  I didn't think this would be an issue for the non-enterprise apps, but I've run into peculiar deals: State transitions that don't transition but don't fail.  If you keep trying to move them to the next state via the asp.net interface it will take after a few tries. See my other posts on this topic for more details.  I determine what states are available to transition to in the web app interface by using the StateMachineWorkflowInstance class, and I've found that If server 1 had moved the workflow to a new state, then the next time server 2 queried the StateMachineWorkflowinstance class for its current state, it returned the state previous to the one it actually is in.  Now to be fair, one of those "servers" was the local IIS server created by the Visual Studio, and the other is an actually Windows 2003 Server.  Not sure if that is an issue, I'm checking on that.  With that said I am looking at other architectures, most notably hosting the workflow runtime in a windows service and make calls to it via WCF calls (I'm not

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