Support for high availability in the BizTalk Adapter for MSMQ when you use Message Queuing transactional messages in BizTalk Server 2004 (901268)



The information in this article applies to:

  • Microsoft BizTalk Server 2004 Standard Edition
  • Microsoft BizTalk Server 2004 Partner Edition
  • Microsoft BizTalk Server 2004 Enterprise Edition
  • Microsoft BizTalk Server 2004 Developer Edition

INTRODUCTION

This article describes support in the Microsoft BizTalk Adapter for MSMQ for high availability when you use Microsoft Message Queuing transactional messages in Microsoft BizTalk Server 2004.

MORE INFORMATION

When you use the BizTalk Adapter for MSMQ, BizTalk Server 2004 uses the full installation of Microsoft Message Queuing to receive Message Queuing messages. When you do not use the BizTalk Adapter for MSMQ, BizTalk Server 2004 only uses the BizTalk Message Queuing Adapter (MSMQT). However, you may have to use features that are included in Message Queuing 3.0, such as multithreaded processing. The BizTalk Adapter for MSMQ lets you take full advantage of Message Queuing.

The current design of Message Queuing and BizTalk Server 2004 prevents the use of transactional messages in a highly available BizTalk Server 2004 installation. The supported method to achieve high availability by using Message Queuing is to implement Message Queuing on a cluster. However, we recommend that you use a Network Load Balancer (NLB) that currently cannot be clustered in BizTalk Server 2004.

Message Queuing does not support sending a transactional message across an NLB. Therefore, when you use the BizTalk Adapter for MSMQ, you cannot use an NLB in BizTalk Server 2004 to implement both transactional messaging and a highly available environment.

REFERENCES

For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:

895867 How to install the BizTalk Adapter for MSMQ in BizTalk Server 2004 when MSMQT is installed or when the MSMQC Adapter sample is installed

For more information, visit the following Microsoft Web sites:

Modification Type:MajorLast Reviewed:7/21/2005
Keywords:kbBTSMessaging kbtshoot kbinfo KB901268 kbAudDeveloper kbAudITPRO