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BUG#: 14370 (Plato7x)
Important This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows Registry
When you run a query against a Microsoft SQL Server 2000 Analysis Services server that is secured by dynamic security, you may notice that the query performance decreases.
This problem occurs if the following conditions are true:
The dynamic security is implemented for many users. This number is 2000 or more.
Note The name of the users will be stored in a user table that is typically named Users.
Many connections have been made to the Analysis Services server by the users.
For a list of previous hotfixes, see the "Microsoft SQL Server 2000 post-Service Pack 3 or Microsoft SQL Server 2000 post-Service Pack 3a hotfixes" section in the following Microsoft Knowledge Base article:
290211 How to obtain the most recent SQL Server 2000 service pack
When a user queries a cube that is secured by dynamic security, Analysis Services creates a replica dimension for each user who connects to the Analysis Services server and who is verified by the dynamic security. The replica dimensions are not unloaded until a the following conditions are true:
A dimension or a cube that contains the dimension is processed.
Analysis Services is restarted.
The role membership is changed.
Additionally, the replica dimensions are not unloaded even when the user disconnects. Therefore, when many connections have been made to the Analysis Services server by the users, a delay occurs in validating the new users who are connecting to the Analysis Services server. This behavior occurs because Analysis Services must loop through all the replica dimensions to determine whether a new replica dimension must be created.
Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
After you install this fix, follow these steps:
DWORD registry value to the following registry subkey:
DWORD registry value to 1. If you set the value of the
DWORD registry value to 1, Analysis Services does not look for an existing replica dimension in the memory to find and verify a role. Analysis Services finds and verifies a role by matching the user id and the role id combination. This will improve the query performance when dynamic security is implemented for many users and when the allowed sets or the denied sets for dynamic security are complex.
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 tool in Control Panel.
SQL Server 2000 Analysis Services 32-Bit
This hotfix build is designed for a server that is running SQL Server 2000 Analysis Services 32-bit:
For additional information about the naming schema for Microsoft 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 additional information about the terminology that Microsoft uses when correcting software after it is released, click the following article number to view the article in the Microsoft Knowledge Base:
824684Description of the standard terminology that is used to describe Microsoft software updates