The memory usage of the DFS Replication service keeps increasing on a PDC emulator or on a writable domain controller that is running Windows Server 2008 during the SYSVOL share replication process

Symptoms

Consider the following scenario:

  • On a computer that is running Windows Server 2008, you install the Distributed File System (DFS) Replication service.

  • You configure this computer to be a primary domain controller (PDC) emulator or a writable domain controller.

  • The DFS Replication is used to perform Domain System Volume (SYSVOL share) replication.

In this scenario, the memory usage of the DFS Replication service keeps increasing. If you monitor the DFS Replication service by using Performance Monitor utility (Perfmon.exe), you find that the Private Bytes counter keeps increasing.

Note This issue usually occurs on the Windows Server 2008-based PDC emulators or on the writable domain controllers in a domain that has many read-only domain controllers.

Cause

This problem occurs because the DFS Replication service does not free up some allocated memory during the SYSVOL share replication process.

Resolution

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.
Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.

Prerequisites

To apply this hotfix, your computer must be running one of the following operating systems:

  • Windows Server 2008

  • Windows Server 2008 Service Pack 2 (SP2)

Additionally, the DFS Replication service must be installed on the computer.

Restart requirement

You must restart the computer after you apply this hotfix.

Registry information

You do not have to make any change to the registry.

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 item in Control Panel.

Windows Vista file information note

The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are
listed separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

SP requirement

Dfsrprovs.mof

Not Applicable

66,511

16-Jul-2009

11:41

Not Applicable

SP1

Dfsrress.dll

6.0.6001.22473

2,048

16-Jul-2009

13:55

x86

SP1

Dfsrs.exe

6.0.6001.22473

2,245,632

16-Jul-2009

13:56

x86

SP1

Dfsrprovs.mof

Not Applicable

66,511

16-Jul-2009

11:41

Not Applicable

SP2

Dfsrress.dll

6.0.6002.22175

2,048

16-Jul-2009

13:45

x86

SP2

Dfsrs.exe

6.0.6002.22175

2,247,680

16-Jul-2009

13:46

x86

SP2

For all supported x64-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

SP requirement

Dfsrprovs.mof

Not Applicable

66,511

16-Jul-2009

11:43

Not Applicable

SP1

Dfsrress.dll

6.0.6001.22473

2,048

16-Jul-2009

14:14

x64

SP1

Dfsrs.exe

6.0.6001.22473

3,678,208

16-Jul-2009

14:16

x64

SP1

Dfsrprovs.mof

Not Applicable

66,511

16-Jul-2009

11:42

Not Applicable

SP2

Dfsrress.dll

6.0.6002.22175

2,048

16-Jul-2009

13:51

x64

SP2

Dfsrs.exe

6.0.6002.22175

3,680,256

16-Jul-2009

13:53

x64

SP2

Workaround

To work around the issue, use only domain controllers that are running Windows Server 2008 R2 in the whole domain.

Status

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

More Information

For more 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


Additional file information for Windows Server 2008

Additional files for all supported x86-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

Package_for_kb971203_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

37,718

17-Jul-2009

10:17

Not Applicable

Package_for_kb971203_sc_1~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

18,322

17-Jul-2009

10:17

Not Applicable

Package_for_kb971203_sc~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,703

17-Jul-2009

10:17

Not Applicable

Package_for_kb971203_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

37,637

17-Jul-2009

10:17

Not Applicable

Package_for_kb971203_server_1~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

18,049

17-Jul-2009

10:17

Not Applicable

Package_for_kb971203_server~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,715

17-Jul-2009

10:17

Not Applicable

X86_microsoft-windows-dfsr-core-serveronly_31bf3856ad364e35_6.0.6001.22473_none_9dcca4ddc11af550.manifest

Not Applicable

42,651

16-Jul-2009

17:58

Not Applicable

X86_microsoft-windows-dfsr-core-serveronly_31bf3856ad364e35_6.0.6002.22175_none_9fb51759be3f7d22.manifest

Not Applicable

42,651

16-Jul-2009

17:38

Not Applicable

Additional files for all supported x64-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

Amd64_microsoft-windows-dfsr-core-serveronly_31bf3856ad364e35_6.0.6001.22473_none_f9eb406179786686.manifest

Not Applicable

42,691

16-Jul-2009

18:21

Not Applicable

Amd64_microsoft-windows-dfsr-core-serveronly_31bf3856ad364e35_6.0.6002.22175_none_fbd3b2dd769cee58.manifest

Not Applicable

42,691

16-Jul-2009

17:37

Not Applicable

Package_for_kb971203_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

38,054

17-Jul-2009

10:17

Not Applicable

Package_for_kb971203_sc_1~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

18,523

17-Jul-2009

10:17

Not Applicable

Package_for_kb971203_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,713

17-Jul-2009

10:17

Not Applicable

Package_for_kb971203_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

37,973

17-Jul-2009

10:17

Not Applicable

Package_for_kb971203_server_1~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

18,248

17-Jul-2009

10:17

Not Applicable

Package_for_kb971203_server~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,725

17-Jul-2009

10:17

Not Applicable

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