Microsoft KB Archive/904774

= FIX: When you try to perform two-phase commit transactions over TCP/IP by using Host Integration Server 2004 Managed Provider for DB2, the transactions fail =

Article ID: 904774

Article Last Modified on 12/4/2007

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APPLIES TO


 * Microsoft Host Integration Server 2004 Standard Edition

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SYMPTOMS
When you access later versions of DB2 to perform two-phase commit (2PC) transactions over TCP/IP by using Microsoft Host Integration Server 2004 Managed Provider for DB2, a failure occurs and the transaction is rolled back. When you try to perform a 2PC transaction in SQL Query Analyzer, you receive the following error message:

(1 row(s) affected)

Server: Msg 8522, Level 18, State 1, Line 4

Distributed transaction aborted by MSDTC.



CAUSE
Versions of IBM DB2 that support XA Manager return additional data that Host Integration Server 2004 Managed Provider for DB2 cannot process. Therefore, a protocol violation occurs and Microsoft Distributed Transaction Coordinator (MSDTC) aborts the transaction.



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

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version     Size     File name --  11-Aug-2005  17:11  6.0.1978.0  487,424  Db2oledb.dll 11-Aug-2005 17:15               24,516  Db2oledb.h   11-Aug-2005  17:11  6.0.1978.0   44,032  Ddmstr.dll 11-Aug-2005 17:11  6.0.1978.0  114,688  Microsoft.hostintegration.msdb2client.dll 11-Aug-2005 17:11  6.0.1978.0   71,680  Mseidb2c.dll 11-Aug-2005 17:11  6.0.1978.0  435,200  Mseidb2d.dll 11-Aug-2005 17:11  6.0.1978.0  693,248  Mseidrda.dll Note Because of file dependencies, the most recent hotfix that contains these files may also contain additional files.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



Steps to reproduce the problem
 Use the following settings to set up a linked server that is running Microsoft SQL Server:  Network = TCP/IP Units of Work = DUW (Distributed Units of Work) Connection Pooling = False</ul> </li>  Start SQL Query Analyzer. Then, run a command such as the following. SELECT * from LINKDUW.DSNFD037.SAMPLE.TBLA Notice that the command succeeds. </li>  Run the following series of commands that use 2PC. SET XACT_ABORT ON BEGIN DISTRIBUTED TRAN UPDATE LINKDUW.DSNFD037.SAMPLE.TBLA SET NAME='New Name' WHERE ID=1 COMMIT TRAN SET XACT_ABORT OFF Notice that the series of commands fails. In SQL Query Analyzer, you receive the error message that is mentioned in the &quot;Symptoms&quot; section. </li></ol>

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Additional query words: DB2 DB2OLEDB HIS2004

Keywords: kbbug kbfix kbqfe kbpubtypekc kbhotfixserver KB904774

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