FIX: High memory usage or OOM error when you run an MDX query in SSAS 2008 R2 or in SSAS 2012 that uses the INT function

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Article ID: 2809339 - View products that this article applies to.
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Symptoms

Consider the following scenario:
  • You have a Multidimensional Expressions (MDX) query that uses the INT function.
  • The expression in the INT function involves lots of members.
  • You run the MDX query in Microsoft SQL Server 2012 Analysis Services (SSAS 2012) or in Microsoft SQL Server 2008 R2 Analysis Services (SSAS 2008 R2).
  • The query is executed continuously for some time. For example, the query runs for 30 minutes.
In this scenario, the memory usage of SSAS increases continuously. Eventually, an out of memory (OOM) error occurs.

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 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. 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 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 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 Service Pack 2 (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 S2008 R2 SP2, click the following article number to view the article in the Microsoft Knowledge Base:
2797460 Cumulative update package 5 for SQL Server 2008 R2 S2008 R2 SP2
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 S2008 R2 SP2 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.

Properties

Article ID: 2809339 - Last Review: April 15, 2013 - Revision: 3.0
Applies to
  • Microsoft SQL Server 2008 R2 Service Pack 2
  • Microsoft SQL Server 2008 R2 Analysis Services
  • Microsoft SQL Server 2012 Developer
  • Microsoft SQL Server 2012 Enterprise
  • Microsoft SQL Server 2012 Express
  • Microsoft SQL Server 2012 Standard
  • Microsoft SQL Server 2012 Web
  • SQL Server 2012 Enterprise Core
Keywords: 
kbqfe kbfix kbsurveynew kbexpertiseadvanced KB2809339

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