FIX: Backup operation fails in a SQL Server 2008, in a SQL Server 2008 R2 or in a SQL Server 2012 database after you enable change tracking

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Article ID: 2682488 - View products that this article applies to.
Microsoft distributes Microsoft SQL Server 2008 or Microsoft SQL Server 2008 R2 fixes as one downloadable file. Because the fixes are cumulative, each new release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 or SQL Server 2008 R2 fix release.
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Symptoms

After you enable change tracking in a Microsoft SQL Server 2008, in a Microsoft SQL Server 2008 R2 or in a Microsoft SQL Server 2012 database, backup operations fail, and an error message that resembles the following is logged in the SQL Server error log file:
<Date><Time> <spid> Error: 2601, Severity: 14, State: 1.
<Date><Time> <spid> Cannot insert duplicate key row in object 'sys.syscommittab' with unique index '<Index Name>'.
<Date><Time> <spid> Error: 3999, Severity: 17, State: 1.
<Date><Time> <spid> Failed to flush the commit table to disk in dbid <Database ID> due to error 2601. Check the errorlog for more information.
Additionally, you receive a 2601 error code when SQL Server 2008 tries to perform a checkpoint operation on the database.

Note For an overview of SQL Server database checkpoints, go to the following MSDN website:
Database Checkpoints (SQL Server)

Resolution

Service pack information for SQL Server 2008 R2

To resolve this problem, obtain the latest service pack for SQL Server 2008 R2. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
2527041 How to obtain the latest service pack for SQL Server 2008 R2

Cumulative update information

SQL Server 2012

The fix for this issue was first released in Cumulative Update 2 for SQL Server 2012. For more information about this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
2703275 Cumulative update package 2 for SQL Server 2012
Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2012 fix release. Microsoft recommends that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
2692828 The SQL Server 2012 builds that were released after SQL Server 2012 was released
You must apply a SQL Server 2012 hotfix to an installation of SQL Server 2012.

SQL Server 2008 R2 Service Pack 1

The fix for this issue was first released in Cumulative Update 6 for SQL Server 2008 R2 Service Pack 1. For more information about how to obtain this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
2679367 Cumulative Update package 6 for SQL Server 2008 R2 Service Pack 1
Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 R2 fix release. We recommend that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
2567616 The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 Service Pack 1 was released

SQL Server 2008 R2

The fix for this issue was first released in Cumulative Update 13. For more information about how to obtain this cumulative update package for SQL Server 2008 R2, click the following article number to view the article in the Microsoft Knowledge Base:
2679366 Cumulative Update package 13 for SQL Server 2008 R2
Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 R2 fix release. We recommend that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
981356 The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 was released

SQL Server 2008 Service Pack 3

The fix for this issue was first released in Cumulative Update 4 for SQL Server 2008 Service Pack 3. For more information about how to obtain this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
2673383 Cumulative update package 4 for SQL Server 2008 Service Pack 3
Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server fix release. We recommend that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
2629969 The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 3 was released

SQL Server 2008 Service Pack 2

The fix for this issue was first released in Cumulative Update 9 for SQL Server 2008 Service Pack 2. For more information about how to obtain this cumulative update package for SQL Server 2008, click the following article number to view the article in the Microsoft Knowledge Base:
2673382 Cumulative update package 9 for SQL Server 2008 Service Pack 2
Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 fix release. We recommend that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
2402659 The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 2 was released

Status

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

References

For more information about the Incremental Servicing Model for SQL Server, click the following article number to view the article in the Microsoft Knowledge Base:
935897 An Incremental Servicing Model is available from the SQL Server team to deliver hotfixes for reported problems
For more information about the naming schema for SQL Server updates, click the following article number to view the article in the Microsoft Knowledge Base:
822499 Naming schema for Microsoft SQL Server software update packages
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

Properties

Article ID: 2682488 - Last Review: November 22, 2012 - Revision: 6.2
Applies to
  • Microsoft SQL Server 2012 Developer
  • Microsoft SQL Server 2012 Enterprise
  • Microsoft SQL Server 2012 Standard
  • Microsoft SQL Server 2012 Web
Keywords: 
kbtshoot kbqfe kbfix kbexpertiseadvanced kbsurveynew KB2682488

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