Memory usage of AD FS federation server keeps increasing when many users log on a web application in Windows Server 2012

Symptoms

Assume that many users log on a web application by using an Active Directory Federation Services (AD FS) federation server that is running Windows Server 2012. In this situation, the memory usage of the AD FS federation server keeps increasing, and you cannot log on to the federation server.

Cause

This issue occurs because AD FS federation server uses the WindowsUserNameSecurityTokenHandler class that creates token handles. However, the class does not free the handles correctly when many users log on to the web application.

How to obtain this hotfix

To resolve this issue, we have released a hotfix for Windows Server 2012.

Hotfix for Windows Server 2012

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that 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, go to the following Microsoft website:

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.

Hotfix detail information

Prerequisites

There are no prerequisites for installing this hotfix.

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.


Status

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

More Information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows Server 2012 file information notes

Important Windows 8 hotfixes and Windows Server 2012 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8/Windows Server 2012" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Milestone

    Service branch

    6.2.920 0.21 xxx

    Windows Server 2012

    RTM

    LDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2012" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x64-based versions of Windows Server 2012

File name

File version

File size

Date

Time

Platform

Microsoft.identityserver.service.dll

6.2.9200.21186

660,480

31-Jul-2014

00:56

x86

Microsoft.identityserver.dll

6.2.9200.21186

876,032

31-Jul-2014

00:56

x86

Additional file information

Additional file information for Windows Server 2012

Additional files for all supported x64-based versions of Windows Server 2012

File property

Value

File name

Amd64_0758f55eb371dcfc6ca4a440e647411e_31bf3856ad364e35_6.2.9200.21186_none_7600d0d1d3bc3ba0.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_22a5ce7638b6d5b64a5692b8ed483e54_31bf3856ad364e35_6.2.9200.21186_none_ed6d2045c3dcb3e6.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_243d0ed305fa2102fe988e6c312e2363_31bf3856ad364e35_6.2.9200.21186_none_ab34fd9c1dc0a629.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_3304a45332d375ceb04c0d625836a10e_31bf3856ad364e35_6.2.9200.21186_none_5ded7543371687ff.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_3351d13748e954a0acdfaa4eaf158343_31bf3856ad364e35_6.2.9200.21186_none_ba493482dad2bb2f.manifest

File version

Not applicable

File size

697

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_39da1e95a9d6a237846436d851d504fe_31bf3856ad364e35_6.2.9200.21186_none_bd98768d944d69c1.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_4053e5d6f012a3c0aac25c0bd45133f4_31bf3856ad364e35_6.2.9200.21186_none_d5e4a11961bc37f5.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_4f36c27961dd37c15ee0d04b65b589ab_31bf3856ad364e35_6.2.9200.21186_none_d3a9dbf75e151dc8.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_57d8c291b66a178c92e6fa826e2e1c08_31bf3856ad364e35_6.2.9200.21186_none_aa19a4b7b588ed54.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_78d2aeecdb3adb7859e1f8baf830ddcb_31bf3856ad364e35_6.2.9200.21186_none_968da995f61f36c5.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_7c27c1847e3b7dc66d8f41a9dd6a6b19_31bf3856ad364e35_6.2.9200.21186_none_ecb33ddd07a5b8a4.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_845bbc3442263f86b2447927ea5cbfff_31bf3856ad364e35_6.2.9200.21186_none_ab3600205daac61f.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_9541b9b45dc0104f0a340218974989ff_31bf3856ad364e35_6.2.9200.21186_none_f0c140b1829118e8.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_9d5944605afe4520ab5d9c3b7d407010_31bf3856ad364e35_6.2.9200.21186_none_dcbf2458d4aab16d.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_9d6e53edc72376349c9f0c601bd9cf70_31bf3856ad364e35_6.2.9200.21186_none_55b1a762b87bb7b8.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_a819b47e75a09fb16ef98cab0b11ba1c_31bf3856ad364e35_6.2.9200.21186_none_d60698e18bfcb817.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_c20c55fa134e2f80c1bc840b86d00013_31bf3856ad364e35_6.2.9200.21186_none_e070387ef8c9d6c7.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_cfd240618f81b1bc3357dab92dc623c9_31bf3856ad364e35_6.2.9200.21186_none_cf57430dc7d14e21.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_db7adb62650bb5597562f2873b588475_31bf3856ad364e35_6.2.9200.21186_none_5e0a9740f7a138b7.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_f3303a7cecf3c157197c9cf708a894ba_31bf3856ad364e35_6.2.9200.21186_none_e804c322a50a0c15.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Amd64_ff1fd31849467a0f386cd6e6496b69d6_31bf3856ad364e35_6.2.9200.21186_none_2cdba5093bacc34d.manifest

File version

Not applicable

File size

705

Date (UTC)

31-Jul-2014

Time (UTC)

10:44

Platform

Not applicable

File name

Msil_microsoft.identityserver.service_31bf3856ad364e35_6.2.9200.21186_none_c592503dcf0ee4bf.manifest

File version

Not applicable

File size

3,333

Date (UTC)

31-Jul-2014

Time (UTC)

01:08

Platform

Not applicable

File name

Msil_microsoft.identityserver_31bf3856ad364e35_6.2.9200.21186_none_8f5122e54553e50c.manifest

File version

Not applicable

File size

3,301

Date (UTC)

31-Jul-2014

Time (UTC)

01:08

Platform

Not applicable


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

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