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FIX: The TokenAndPermUserStore cache store size continues to grow when you enable a SQL Server audit in SQL Server 2008 R2 and in SQL Server 2008

Microsoft distributes 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 R2 fix release.
SYMPTOMS
When you create and enable a SQL Server audit on a computer that is running Microsoft SQL Server 2008 R2 or Microsoft SQL Server 2008, the TokenAndPermUserStore cache store continues to grow in size. Additionally, the size does not decrease even when you run the following command, which removes unused cache entries from the TokenAndPermUserStore cache store:
DBCC FREESYSTEMCACHE ('TokenAndPermUserStore')
Notes
  • This issue does not occur if you enable only the C2 audit tracing in SQL Server 2008 R2 or in SQL Server 2008.
  • You can run the following query to find the size of the TokenAndPermUserStore cache store:
    select name,single_pages_kb,multi_pages_kb from sys.dm_os_memory_clerkswhere type = 'USERSTORE_TOKENPERM' and single_pages_kb+multi_pages_kb > 8order by single_pages_kb+multi_pages_kb desc
CAUSE
This issue occurs because a memory leak occurs when a SQL Server audit is enabled on an object.

Note This memory allocation cannot be freed when you run the DBCC FREESYSTEMCACHE command.
RESOLUTION

Cumulative update information


The fix for this issue was first released in Cumulative Update 3. 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:
2261464 Cumulative update package 3 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

Resolution for SQL Server 2008

The resolution for SQL Server 2008 is included in SQL Server 2008 Service Pack 2. For more information about the list of the bugs that are fixed in SQL Server 2008 Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base:
2285068 List of the bugs that are fixed in SQL Server 2008 Service Pack 2
MORE INFORMATION
Rule softwareRule titleRule descriptionProduct versions against which the rule is evaluated
System Center AdvisorSQL Server missing update KB2277078 to prevent leak of security audit entries in TokenAndPermUserStoreSystem Center Advisor determines whether this instance of SQL Server contains any defined audits and whether this fix is applied. If the current build version of SQL Server is earlier than the fix build version, the advisor generates an alert about this issue. Review the details that are provided in the “Information Collected” section of the advisor alert, and apply the fix that is discussed in this article.SQL Server 2008

SQL Server 2008 R2
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:
822499New 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: 2277078 - Last Review: 10/28/2011 20:33:00 - Revision: 3.0

Microsoft SQL Server 2008 R2 Datacenter, Microsoft SQL Server 2008 R2 Enterprise, Microsoft SQL Server 2008 Enterprise, Microsoft SQL Server 2008 Developer

  • kbqfe kbfix kbexpertiseadvanced kbsurveynew KB2277078
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