FIX: Some Messages in the Retry Queue Are Not Processed for a Long Time (319339)



The information in this article applies to:

  • Microsoft BizTalk Server 2002

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.

RESOLUTION

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 fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next SP1 that contains this fix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.


   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.

Modification Type:MinorLast Reviewed:10/11/2005
Keywords:kbHotfixServer kbQFE kbBizTalk2002SP1fix kbbug kbfix KB319339 kbAudDeveloper