FIX: An access violation may occur in the Msmdsrv.exe process, and the server may crash when you try to run an Alter DDL command in SQL Server 2005 Analysis Services (916820)

RESOLUTION

Hotfix information

This hotfix is included in the cumulative hotfix package (build 2153) for SQL Server 2005 that is discussed in Microsoft Knowledge Base article 918222. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

918222 Cumulative hotfix package (build 2153) for SQL Server 2005 is available

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next SQL Server 2005 Analysis Services service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

To apply this hotfix, you must have Analysis Services installed on the computer.

Restart information

You do not have to restart the computer after you apply this hotfix. However, this hotfix stops and then restarts the Analysis Services service. If you configured the server for HTTP access, you must stop Microsoft Internet Information Services (IIS) and then restart IIS after the installation is finished. If you installed Analysis Services as a named instance, you must stop the SQL Server Browser service. You must stop the SQL Server Browser service because the Msmdredir.dll component of the SQL Server Browser service is updated during the installation of this hotfix.

Registry information

You do not have to change the registry.

Hotfix file information

This hotfix contains only those files that are required to correct the issues that this article lists. This hotfix may not contain all the files that you must have to fully update a product to the latest build.

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.SQL Server 2005 Analysis Services 32-bit versions

File name	File version	File size	Date	Time	Platform
Msmdlocal.dll	9.0.1534.0	15,597,784	22-Mar-2006	03:07	x86
Msmdpump.dll	9.0.1534.0	3,913,944	22-Mar-2006	03:07	x86
Msmdredir.dll	9.0.1534.0	3,927,256	22-Mar-2006	03:07	x86
Msmdsrv.exe	9.0.1534.0	14,575,832	22-Mar-2006	03:07	x86
Msmgdsrv.dll	9.0.1534.0	5,935,320	22-Mar-2006	03:07	x86
Msolap90.dll	9.0.1534.0	4,205,272	22-Mar-2006	03:07	x86

SQL Server 2005 Analysis Services 64-bit version

File name	File version	File size	Date	Time	Platform
Msmdlocal.dll	9.0.1534.0	30,035,672	23-Mar-2006	01:20	x64
Msmdpump.dll	9.0.1534.0	4,959,448	23-Mar-2006	01:20	x64
Msmdredir.dll	9.0.1534.0	4,832,472	23-Mar-2006	01:20	x64
Msmdsrv.exe	9.0.1534.0	29,360,344	23-Mar-2006	01:20	x64
Msmgdsrv.dll	9.0.1534.0	8,910,040	23-Mar-2006	01:20	x64
Msolap90.dll	9.0.1534.0	5,669,080	23-Mar-2006	01:20	x64

SQL Server 2005 Analysis Services Itanium-architecture version

File name	File version	File size	Date	Time	Platform
Msmdlocal.dll	9.0.1534.0	48,464,088	22-Mar-2006	07:02	IA-64
Msmdpump.dll	9.0.1534.0	6,528,728	22-Mar-2006	07:04	IA-64
Msmdredir.dll	9.0.1534.0	6,073,560	22-Mar-2006	07:04	IA-64
Msmdsrv.exe	9.0.1534.0	47,423,192	22-Mar-2006	07:04	IA-64
Msmgdsrv.dll	9.0.1534.0	12,842,200	22-Mar-2006	07:04	IA-64
Msolap90.dll	9.0.1534.0	7,687,384	22-Mar-2006	07:04	IA-64

WORKAROUND

To work around this problem by using the Analysis Management Objects (AMO), wrap the Dimension.Update method call in a transaction. Then, call the Dimension.Update method by using the UpdateOptions.ExpandFull parameter. Additionally, add code to delete the dimension hierarchies from the cube. For example, follow these steps:

Start the transaction.
Update the dimension.
Iterate through the cubes.
Alter the cubes that contain the dimension, and then delete the dimension hierarchies.
Commit the transaction.

The following code example illustrates these steps.

server.BeginTransaction();
try
{
    dim.Update(UpdateOptions.ExpandFull, UpdateMode.UpdateOrCreate);
    foreach (string hierarchyName in BadHierarchies)
    {
         foreach (Cube cub in db.Cubes) 
         {
              CubeDimension cub_dim = (CubeDimension)cub.Dimensions.Find(dim.Name.Trim());
              if (cub_dim != null) 
              {
                   cub_dim.Hierarchies.Remove(hierarchyName.Trim());
                   cub_dim.Dispose();
                   cub.Update(UpdateOptions.ExpandFull, UpdateMode.UpdateOrCreate);
               }
           }
       }
       server.CommitTransaction();
}
catch (Exception ex) 
{
       System.Diagnostics.Trace.WriteLine(ex.Message);
       server.RollbackTransaction();
}