Orchestration Hosting Infrastructure
Let's look at the hosting infrastructure for running the XLANG schedules. This is provided by COM+ Services and by SQL Server 2000 database server.
Recall that the XLANG schedules embody long-running business processes; hence, running schedules must survive system restarts. Also, to support scalability, BizTalk Orchestration Services may dehydrate running XLANG schedules. These are schedules that have become quiescent and are now waiting for some event to occur before they can continue running. SQL Server 2000 provides the persistence database for saving the state of running schedules. COM+ application services provide the processes and the environment to run XLANG schedules. The following sections discuss ...
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