Microsoft KB Archive/319339

= FIX: Some Messages in the Retry Queue Are Not Processed for a Long Time =

Article ID: 319339

Article Last Modified on 11/15/2007

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APPLIES TO


 * Microsoft BizTalk Server 2002 Standard Edition

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This article was previously published under Q319339



SYMPTOMS
The selection of messages from the Retry queue in BizTalk Server 2002 may cause some messages to not be processed for a long time (which is also known as starvation). If these unprocessed messages are related to messages on which the running XLANG schedules are waiting, this negatively affects the XLANG schedule performance.



CAUSE
The retry logic randomly selects messages from the Retry queue for processing. This may cause some messages to be retried repeatedly while other messages are not processed for a long time.



Service Pack Information
To resolve this problem, obtain the latest service pack for Microsoft BizTalk Server 2002. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

815781 How to Obtain the Latest BizTalk Server 2002 Service Pack

Hotfix Information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

  Date         Time   Version      Size    File Name --  Mar-15-2002  17:21  n/a          2,160   RetryDequeue.sql This RetryDequeue.sql file must be run against the InterchangeSQ database. With this fix, the retry logic selects messages for retry based on the time lapse since their last retry. Those messages that have the greater time lapse receive the higher priority. This logic effectively prevents the starvation of any messages.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Microsoft BizTalk Server 2002 Service Pack 1.

Keywords: kbhotfixserver kbqfe kbbiztalk2002sp1fix kbbug kbfix KB319339

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