Microsoft KB Archive/884557

= FIX: Microsoft Message Queuing service stops responding when the client application performs multiple remote reads =

Article ID: 884557

Article Last Modified on 11/15/2007

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APPLIES TO


 * Microsoft Message Queuing 3.0

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SYMPTOMS
When your Microsoft Message Queuing client application performs multiple remote reads from a Microsoft Windows 2003-based computer, the Transmission Control Protocol (TCP) connection count on the remote computer that is running the Message Queuing service increases until the Message Queuing Server service on the remote computer stops responding.



CAUSE
This problem occurs when the Message Queuing service holds a TCP connection after the Message Queuing service receives a request, but the Message Queuing service does not process the request in a timely manner. Because of this behavior, the TCP connection count increases until the system runs out of resources.



RESOLUTION
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

Prerequisites
Microsoft Windows Server 2003

Restart requirement
You must restart your computer after you apply this hotfix.

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 01-Sep-2004 17:16  5.2.1729.207       77,312  Mqac.sys 01-Sep-2004 17:49  5.2.1729.207      146,432  Mqad.dll 01-Sep-2004 17:49  5.2.1729.207      192,000  Mqads.dll 01-Sep-2004 17:17  5.2.1729.207       28,160  Mqbkup.exe 01-Sep-2004 17:49  5.2.1729.207        9,728  Mqcertui.dll 01-Sep-2004 17:49  5.2.1729.207       31,232  Mqdbodbc.dll 01-Sep-2004 17:49  5.2.1729.207       47,616  Mqdscli.dll 01-Sep-2004 17:49  5.2.1729.207       48,128  Mqdssrv.dll 01-Sep-2004 17:49  5.2.1729.207       44,544  Mqgentr.dll 01-Sep-2004 17:49  5.2.1729.207       28,160  Mqise.dll 01-Sep-2004 17:49  2001.12.4720.19    71,680  Mqlogmgr.dll 01-Sep-2004 17:17  5.2.1729.207       39,424  Mqmig.exe 01-Sep-2004 17:49  5.2.1729.207      220,160  Mqmigrat.dll 01-Sep-2004 17:49  5.2.1729.207      230,400  Mqoa.dll 01-Sep-2004 17:49  5.2.1729.207       15,872  Mqperf.dll 01-Sep-2004 16:49  5.2.1729.207      778,240  Mqqm.dll 01-Sep-2004 17:49  5.2.1729.207      169,472  Mqrt.dll 01-Sep-2004 17:49  5.2.1729.207      117,248  Mqrtdep.dll 01-Sep-2004 17:49  5.2.1729.207      133,632  Mqsec.dll 01-Sep-2004 17:49  5.2.1729.207      508,928  Mqsnap.dll 01-Sep-2004 17:49  5.2.1729.207       50,176  Mqupgrd.dll 01-Sep-2004 17:49  5.2.1729.207      421,888  Mqutil.dll



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
To reproduce this problem, create application that loops through the following steps:
 * 1) Call the MQOpenQueue method to open the remote queue.
 * 2) Call the MQReceiveMessage method with callback.
 * 3) Call the MQCloseQueue method to close the queue.

Note On both the client and the server, TCP ports and handles are left open.

