FIX: Error message when you perform a processing operation or a query operation in SQL Server 2005 Analysis Services: "Error 0xC1020034. The following file is corrupted"

When you perform a processing operation or a query operation in Microsoft SQL Server 2005 Analysis Services, the operation fails. Additionally, you receive the following error message:Note The placeholder FileDescription represents information about the corrupted file.

This problem occurs after you install Cumulative Update 5 for SQL Server 2005 Service Pack 2.

This problem occurs because of a race condition that was introduced in Cumulative Update 5 for SQL Server 2005 Service Pack 2.

Note The build of Cumulative Update 5 for SQL Server 2005 Service Pack 2 is 09.00.3215.

When the race condition occurs, SQL Server 2005 Analysis Services marks a data page in memory. In doing this, SQL Server 2005 Analysis Services indicates that the data page has been written to disk. However, the marked data page in memory is not actually written to disk. The race condition prevents SQL Server 2005 Analysis Services from writing the marked data page in memory to disk. This situation may result in file corruption when the Windows operating system later discards the changed memory.

The fix for this issue was first released in Cumulative Update 6. For more information about how to obtain this cumulative update package for SQL Server 2005 Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base: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 2005 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:Microsoft SQL Server 2005 hotfixes are created for specific SQL Server service packs. You must apply a SQL Server 2005 Service Pack 2 hotfix to an installation of SQL Server 2005 Service Pack 2. By default, any hotfix that is provided in a SQL Server service pack is included in the next SQL Server service pack.

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

Microsoft discovered this race condition during ongoing internal testing. The race condition may occur while a background cleanup operation is executing if one of the following conditions is true:

• The operation is executing on a server that has fewer than eight processors, and memory usage exceeds the high memory limit.
  
  Note The high memory limit is specified in the TotalMemoryLimit memory property. The TotalMemoryLimit memory property defines the total amount of physical memory that is available to SQL Server 2005 Analysis Services under typical operating conditions. Values smaller than 100 represent a percentage of memory. Values larger than 100 represent an absolute value in bytes.
  
  
• The operation is executing on a server that has at least eight processors, and memory usage exceeds the midpoint between the low memory limit and the high memory limit.
  
  Note The low memory limit is set in the LowMemoryLimit memory property. The LowMemoryLimit memory property defines the low threshold of physical memory that is available to SQL Server 2005 Analysis Services. Values smaller than 100 represent a percentage of memory. Values larger than 100 represent an absolute value in bytes.

We recommend that you install the latest cumulative update package if you are running one of the following builds of SQL Server 2005 Analysis Services:

• Build 09.00.3215
  For more information about the problems that are fixed in build 09.00.3215, click the following article number to view the article in the Microsoft Knowledge Base:
  943656  (http://support.microsoft.com/kb/943656/ ) Cumulative update package 5 for SQL Server 2005 Service Pack 2
• Build 09.00.3221
  For more information about the problem that is fixed in build 09.00.3221, click the following article number to view the article in the Microsoft Knowledge Base:
  942908  (http://support.microsoft.com/kb/942908/ ) FIX: The change may be undone during the later synchronizations when you change an article on the subscriber in SQL Server 2005
• Build 09.00.3222
  For more information about the problem that is fixed in build 09.00.3222, click the following article number to view the article in the Microsoft Knowledge Base:
  947196  (http://support.microsoft.com/kb/947196/ ) FIX: An access violation occurs when you run an MDX query by using a user account that is a member of some different roles in SQL Server 2005 Analysis Services
• Build 09.00.3224
  For more information about the problem that is fixed in build 09.00.3224, click the following article number to view the article in the Microsoft Knowledge Base:
  947463  (http://support.microsoft.com/kb/947463/ ) FIX: A stored procedure cannot finish its execution in SQL Server 2005

We consider the possibility of encountering the race condition to be small. After you install the latest cumulative update package, we recommend that you reprocess all cubes that were processed by using the builds of SQL Server 2005 Analysis Services that are mentioned in the previous bulleted list. By taking this action, you can make sure that the data that you process contains no corruption that is caused by the race condition.

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:

For more information about the list of builds that are available after SQL Server Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base: 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:For more information about how to obtain SQL Server 2005 Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base: For more information about the new features and the improvements in SQL Server 2005 Service Pack 2, visit the following Microsoft Web site: 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:For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: