Microsoft distributes Microsoft SQL Server 2008 R2 Service Pack 2 (SP2) 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 Service Pack 2 fix release.
Symptoms
Consider the following scenario:
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You implement a SQL Server Analysis Services personalization extension in Microsoft SQL Server 2012 Analysis Services (SSAS 2012) or in Microsoft SQL Server 2008 R2 Analysis Services (SSAS 2008 R2).
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You run a Multidimensional Expressions (MDX) query against an instance of SSAS in one session. This operation triggers the execution of the personalization extension.
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Before the personalization extension is finished executing the query, you try to cancel it.
In this scenario, a session deadlock occurs and Analysis Services is unresponsive. Note When this issue occurs, operations that require a commit lock on the database involved in the cancelled query encounter blocking, and all subsequent operations on the involved database are blocked.
Cause
The issue occurs because of a deadlock that occurs between the query thread that is running the personalization extension code and the thread that sends the cancel request.
Resolution
Cumulative update information
Cumulative Update 7 for SQL Server 2012
The fix for this issue was first released in Cumulative Update 7. For more information about how to obtain this cumulative update package for SQL Server 2012, click the following article number to view the article in the Microsoft Knowledge Base:
2823247 Cumulative update package 7 for SQL Server 2012Note 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. 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:
2692828 The SQL Server 2012 builds that were released after SQL Server 2012 was released
Cumulative Update 3 for SQL Server 2012 SP1
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 2012 SP1, click the following article number to view the article in the Microsoft Knowledge Base:
2812412 Cumulative update package 3 for SQL Server 2012 Service Pack 1Note 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 SP1 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:
2772858 The SQL Server 2012 builds that were released after SQL Server 2012 Service Pack 1 was released
Cumulative Update 5 for SQL Server 2008 R2 SP2
The fix for this issue was first released in Cumulative Update 5. For more information about how to obtain this cumulative update package for SQL Server 2008 R2 SP 2, click the following article number to view the article in the Microsoft Knowledge Base:
2797460 Cumulative update package 5 for SQL Server 2008 R2 Service Pack 2Note 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 SP 2 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:
2730301 The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 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.
More Information
For more information about SQL Server Analysis Services personalization extensions, go to the following MSDN website:
General information about SQL Server Analysis Services personalization extensions
