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An HWS task may be reassigned to two distinct TaskID identifiers at the same time in BizTalk Server 2004

Symptoms

In Microsoft BizTalk Server 2004, a TaskID identifier for a Human Workflow Services (HWS) task may be reassigned to two distinct TaskID identifiers at the same time. For example, TaskID identifier A may be reassigned to TaskID identifier B and TaskID identifier C in the Hws_TaskReassignment table in BizTalkDTADb database.

When this issue occurs, the Hws_TaskReassignment table in the BizTalkDTADb database may appear similar to the following. In this example, A, B, and C are TaskID identifier GUIDs.
TaskIDReassignedToTaskIDFirstTaskID
ABA
BNULLA
CNULLA
Additionally, you may receive an error message when you call the GetAllTasksForUser function from the Microsoft BizTalk Server 2004 SDK.

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Cause

This issue occurs because you submitted the same task two times.

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Workaround

To work around this issue, delete the duplicate record from the Hws_TaskReassignment and Hws_Tasks tables in the BizTalkDTADb database.

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More Information

To identify the duplicate records, run the following query in SQL Query Analyzer:
select trAll.*
from Hws_TaskReassignment tr
inner join Hws_TaskReassignment trAll
on tr.FirstTaskID = trAll.FirstTaskID
where tr.TaskID NOT IN
(
SELECT ReassignedToTaskID
FROM Hws_TaskReassignment
WHERE ReassignedToTaskID IS NOT NULL
)
and tr.ReassignedToTaskID IS NULL
order by trAll.FirstTaskID

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Keywords: kbcode, kbprb, kbentirenet, kbbtshws, kbbts, kbtshoot, kbbug, kbpubtypekc, kb

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Article Info
Article ID : 908160
Revision : 1
Created on : 3/25/2017
Published on : 9/23/2011
Exists online : False
Views : 606