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Cluster service freezes on a Windows Server 2012 R2 or Windows Server 2012-based failover cluster

This article describes an issue that occurs on a Windows Server 2012 R2 or Windows Server 2012-based cluster. A hotfix is available to fix this issue. The hotfix has a prerequisite.
Symptoms
This issue occurs when GEM repair messages that are sent by one of the cluster nodes aren't received by another cluster node for order of minutes whereas other cluster nodes receive the messages in a timely manner. That eventually causes the cluster outage.
Hotfix information
Important If you install a language pack after you install this hotfix, you must reinstall this hotfix. Therefore, we recommend that you install any language packs that you need before you install this hotfix. For more information, see Add language packs to Windows.

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that's described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there's a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section doesn't appear, submit a request to Microsoft Customer Service and Support to get 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 don't 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 website: Note The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you don't see your language, it's because a hotfix isn't available for that language.

Prerequisites

To apply this hotfix in Windows Server 2012 R2, you must have April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed.

Registry information

To apply this hotfix, you don't 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 doesn't 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.
References
See the terminology that Microsoft uses to describe software updates.
File Information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). Be aware that dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time bias. The dates and times may also change when you perform certain operations on the files.

Windows Server 2012 R2

Important Windows 8.1 hotfixes and Windows Server 2012 R2 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 8.1/Windows Server 2012 R2" 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:
    VersionProductMilestoneService branch
    6.3.960 0.18 xxxWindows Server 2012 R2RTMGDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" 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 aren't listed, are signed with a Microsoft digital signature.
x64 Windows Server 2012 R2
File nameFile versionFile sizeDateTimePlatform
Clussvc.exe6.3.9600.180617,536,64021-Sep-201518:08x64

Windows Server 2012

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:
    VersionProductMilestoneService branch
    6.2.920 0.21 xxxWindows Server 2012RTMLDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" 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 aren't listed, are signed with a Microsoft digital signature.
x64 Windows Server 2012
File nameFile versionFile sizeDateTimePlatform
Clussvc.exe6.2.9200.216387,316,99221-Sep-201520:35x64

Additional file information

x64 Windows Server 2012 R2
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File size1,072
Date (UTC)22-Sep-2015
Time (UTC)00:50
PlatformNot applicable
File nameAmd64_microsoft-windows-f..overcluster-clussvc_31bf3856ad364e35_6.3.9600.18061_none_aa92751075758bfa.manifest
File versionNot applicable
File size9,346
Date (UTC)21-Sep-2015
Time (UTC)20:16
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size1,595
Date (UTC)22-Sep-2015
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File nameWow64_microsoft-windows-f..overcluster-clussvc_31bf3856ad364e35_6.3.9600.18061_none_b4e71f62a9d64df5.manifest
File versionNot applicable
File size6,410
Date (UTC)21-Sep-2015
Time (UTC)19:18
PlatformNot applicable
x64 Windows Server 2012
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File size723
Date (UTC)22-Sep-2015
Time (UTC)13:46
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File nameAmd64_0f28a8e3f55541abef48a4b5c562a247_31bf3856ad364e35_6.2.9200.21638_none_adbc0cc978290311.manifest
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File size723
Date (UTC)22-Sep-2015
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Date (UTC)22-Sep-2015
Time (UTC)13:46
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File size723
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Time (UTC)13:46
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File size723
Date (UTC)22-Sep-2015
Time (UTC)13:46
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File nameAmd64_8df0c7f3f297a48da2d632bbc5341e8d_31bf3856ad364e35_6.2.9200.21638_none_e3c6b287ccb8136b.manifest
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File size723
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Time (UTC)13:46
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Date (UTC)22-Sep-2015
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File nameAmd64_microsoft-windows-f..overcluster-clussvc_31bf3856ad364e35_6.2.9200.21638_none_134eeb45444190f7.manifest
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Date (UTC)21-Sep-2015
Time (UTC)22:51
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Date (UTC)21-Sep-2015
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Date (UTC)22-Sep-2015
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File nameAmd64_microsoft-windows-f..r-clussvc.resources_31bf3856ad364e35_6.2.9200.21638_it-it_a4d583c144babcc3.manifest
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Date (UTC)22-Sep-2015
Time (UTC)03:08
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Properties

Article ID: 3080141 - Last Review: 11/11/2015 00:21:00 - Revision: 1.0

Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows Server 2012 Datacenter, Windows Server 2012 Standard, Windows Server 2012 Essentials, Windows Server 2012 Foundation

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