Microsoft KB Archive/812421

= PRB: Orchestration Schedules Generate Errors When Running on Clustered BizTalk Server =

Article ID: 812421

Article Last Modified on 1/10/2003

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APPLIES TO


 * Microsoft BizTalk Server 2002 Standard Edition

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SYMPTOMS
When you run BizTalk Server on a cluster, and you use a clustered XLANG Scheduler resource or a clustered Message Queuing (also known as MSMQ) resource, you may receive error messages similar to the following in the application log of the clustered BizTalk Server:

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These errors typically occur when an XLANG Schedule tries to read from or write to a clustered Message Queuing queue or when BizTalk Messaging tries to create an instance of an XLANG Schedule from the clustered XLANG Scheduler resource.



CAUSE
This problem may occur if the local instance of the Message Queuing Service is running, or if any XLANG Scheduler COM+ applications are started other than the clustered XLANG Scheduler resource.



RESOLUTION
Verify that only the clustered instances of the XLANG Scheduler application and the Message Queuing Service are running on the BizTalk Server cluster. To do this, follow these steps:  To verify that the local instance of the Message Queuing Service is not running, open a command prompt on the computer running BizTalk Server, type the following command, and then press ENTER:

net stop msmq

 To verify that only the clustered XLANG Scheduler resource is running on the BizTalk Server, follow these steps:  Open the Cluster Administrator, and then take the XLANG Scheduler Resource offline. Click Start, point to Programs, and then click Administrative Tools. Start the Component Services MMC Snap-in. Under My Computer, expand the COM+ Applications folder. Right-click XLANG Scheduler COM+ Application, and then select the option to Shut Down.</li> In the Cluster Administrator, bring the XLANG Scheduler Resource back online.</li></ol> </li></ol>

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STATUS
This behavior is by design.

Keywords: kberrmsg kbprb KB812421

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