FIX: The output from the DBCC MEMORYSTATUS command indicates that the Schema Manager cache uses more buffer space than expected in SQL Server 2008

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Article ID: 958599 - View products that this article applies to.
Bug #: 50003617 (SQL Hotfix)
Microsoft distributes Microsoft SQL Server 2008 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 fix release.
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SYMPTOMS

When you use the DBCC MEMORYSTATUS command in Microsoft SQL Server 2008, the output in the "Global memory objects" section indicates that the Schema Manager cache uses more buffer space than expected.

Note The "SE SchemaManager" entry in the "Global memory objects" section indicates the cache memory that Schema Manager uses.

CAUSE

This problem occurs because SQL Server 2008 introduces a new schema manager cache to cache column meta data. In SQL Server 2008, an optimization is not used. This results in a larger schema manager cache.

RESOLUTION

The fix for this issue was first released in Cumulative Update 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:
958186 Cumulative update package 2 for SQL Server 2008
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:
956909 The SQL Server 2008 builds that were released after SQL Server 2008 was released

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 about what files are changed, and for information about any prerequisites to apply the cumulative update package that contains the hotfix that is described in this Microsoft Knowledge Base article, click the following article number to view the article in the Microsoft Knowledge Base:
958186 Cumulative update package 2 for SQL Server 2008

REFERENCES

For more information about the DBCC MEMORYSTATUS command, click the following article number to view the article in the Microsoft Knowledge Base:
907877 How to use the DBCC MEMORYSTATUS command to monitor memory usage on SQL Server 2005
For more information about the list of builds that are available after the release of SQL Server 2008, click the following article number to view the article in the Microsoft Knowledge Base:
956909 The SQL Server 2008 builds that were released after SQL Server 2008 was released
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 New 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: 958599 - Last Review: January 20, 2009 - Revision: 2.0
APPLIES TO
  • Microsoft SQL Server 2008 Workgroup
  • Microsoft SQL Server 2008 Enterprise
  • Microsoft SQL Server 2008 Developer
  • Microsoft SQL Server 2008 Standard
Keywords: 
kbschema kbmemory kbcache kbexpertiseadvanced kbqfe kbfix KB958599

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