We are running into a very strange problem with WF 3.5 -
We have a state machine based workflow which works well 9/10 times.
However, in some instances, we are unable to make certain workflow instances transition from one state to the next.
When an appropriate event is raised, the workflow instance does not respond. Our application which raises the events just sits there waiting for the workflow to finish processing and for the control to come back, but it never does.
This happens for some workflow instances only - not all of them.
We have tried enabling workflow tracing and see the following in the log file:
System.Workflow.Runtime Stop: 0 : Workflow Trace System.Workflow.Runtime.Hosting Information: 0 : WorkflowRuntime: Started WorkflowRuntime c4e27b53-12f3-4f83-a6d8-5dbcd2076c8b System.Workflow.Runtime.Hosting Information: 0 : SqlWorkflowPersistenceService OpenConnection start: 04/12/2010 18:51:43 System.Workflow.Runtime.Hosting Information: 0 : SqlWorkflowPersistenceService. OpenConnection end: 04/12/2010 18:51:43 System.Workflow.Runtime.Hosting Information: 0 : SqlWorkflowPersistenceService(00000000-0000-0000-0000-000000000000):Loading instance 9453fba4-964c-4aca-91d9-1b1d4c52fe1b System.Workflow.Runtime.Hosting Information: 0 : SqlWorkflowPersistenceService(00000000-0000-0000-0000-000000000000): retreiving instance: 9453fba4-964c-4aca-91d9-1b1d4c5
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