Symptoms

Microsoft OLE DB Provider for DB2 of Microsoft Host Integration Server 2006 ignores the Connection Pooling property when you use the OLE DB provider together with a Microsoft SQL Server linked server. Because of this, there may be many open connections to the mainframe.

Additionally, when you run the following command, you see that the number of connections to the TCP/IP address and the port number of the host increases continuously:
netstat –ano –p TCP

For example, after you run this command, you may see the following information:
TCP 65.53.233.90:4816 10.195.144.4:446 TIME_WAIT
TCP 65.53.233.90:4817 10.195.144.4:446 TIME_WAIT
TCP 65.53.233.90:4818 10.195.144.4:446 TIME_WAIT
TCP 65.53.233.90:4819 10.195.144.4:446 ESTABLISHED
TCP 65.53.233.90:4820 10.195.144.4:446 TIME_WAIT

Cause

This problem occurs because OLE DB Provider for DB2 of Host Integration Server 2006 for DB2 cannot parse the Connection Pooling connection string property when the OLE DB provider uses a linked server.

Resolution

To resolve this problem, obtain the latest service pack for Host Integration Server 2006. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

979497 How to obtain the latest Host Integration Server 2006 service pack

Hotfix Information

A supported hotfix is 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 the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

No prerequisites are required.

Restart Requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix Replacement Information

This hotfix does not replace any other hotfixes.

File Information

The English version of this hotfix has the file attributes (or later) 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.

Microsoft Host Integration Server 2006


File name

File version

File size

Date

Time

Db2oledb.dll

7.0.2922.0

522,576

19-May-2009

05:22

Microsoft.hostintegration.adapters.msdb2.runtime.dll

7.0.2922.0

79,784

19-May-2009

05:23

Microsoft.hostintegration.dataaccesslibrary.dll

7.0.2922.0

1,787,800

19-May-2009

05:23

Microsoft.hostintegration.dataaccesstool.exe

7.0.2922.0

505,744

19-May-2009

05:23

Microsoft.hostintegration.msdb2client.dll

7.0.2922.0

231,312

19-May-2009

05:23

Mseidb2c.dll

7.0.2922.0

94,032

19-May-2009

05:23

Mseidb2d.dll

7.0.2922.0

490,832

19-May-2009

05:23

Mseidrda.dll

7.0.2922.0

853,320

19-May-2009

05:23

Snanls.dll

7.0.2922.0

106,320

19-May-2009

05:23

Trnsbidi.dll

7.0.2922.0

60,752

19-May-2009

05:22


Microsoft OLE DB Provider for DB2 1.0 SP2


File name

File version

File size

Date

Time

Db2oledb.dll

7.0.3064.0

514,048

06-May-2009

00:34

Microsoft.hostintegration.dataaccesslibrary.dll

7.0.3064.0

2,547,712

06-May-2009

00:34

Microsoft.hostintegration.dataaccesstool.exe

7.0.3064.0

610,304

06-May-2009

00:35

Mseidrda.dll

7.0.3064.0

796,672

06-May-2009

00:35

Snanls.dll

7.0.3064.0

98,304

06-May-2009

00:30

Microsoft OLE DB Provider for DB2 2.0


File name

File version

File size

Date

Time

Db2oledb.dll

7.0.3186.2

571,216

14-Apr-2009

23:47

Microsoft.hostintegration.dataaccesslibrary.dll

7.0.3186.2

2,426,776

14-Apr-2009

23:47

Msdrda.dll

7.0.3186.2

841,552

14-Apr-2009

23:47

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article.

More Information

For additional information, 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

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