Microsoft KB Archive/932180

= FIX: The Cluster Discrimination tab is empty when you browse a clustering model of SQL Server 2005 Analysis Services in SQL Server BIDS =

Article ID: 932180

Article Last Modified on 11/4/2007

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APPLIES TO


 * Microsoft SQL Server 2005 Analysis Services

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Bug: #50000802 (SQL Hotfix)



Notice
Microsoft distributes Microsoft SQL Server 2005 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 2005 fix release.



SUMMARY
This article describes the following about this hotfix release:
 * The issues that are fixed by the hotfix package
 * The prerequisites for installing the hotfix package
 * Whether you must restart the computer after you install the hotfix package
 * Whether the hotfix package is replaced by any other hotfix package
 * Whether you must make any registry changes
 * The files that are contained in the hotfix package



SYMPTOMS
When you browse a clustering model in Microsoft SQL Server Business Intelligence Development Studio (BIDS), the Cluster Discrimination tab is empty. Additionally, minidump files are generated in the Microsoft SQL Server 2005 Analysis Services log folder. When you trace the Analysis Services service, you receive the following error message:

Internal error: An unexpected exception occured. Execution of the managed stored procedure GetClusterDiscrimination failed with the following error: Exception has been thrown by the target of an invocation.Object reference not set to an instance of an object.

Note In this error message, the word &quot;occured&quot; is a misspelling for the word &quot;occurred.&quot;

This problem occurs if the following conditions are true:
 * You create a SQL Server 2005 Analysis Services project by using BIDS.
 * You create a clustering model that contains one or more input columns.
 * In the mining structure, the content type for the input columns is Continuous.
 * The training data contains a null value for the input columns.



CAUSE
This issue occurs because the procedure that is used to calculate cluster discriminations for the continuous input columns does not correctly handle the null data.



Cumulative update information
To resolve this problem, obtain cumulative update package 2 for SQL Server 2005 Service Pack 2 (build 3175). For more information about how to obtain cumulative update package 2 (build 3175), click the following article number to view the article in the Microsoft Knowledge Base:

936305 Cumulative update package 2 for SQL Server 2005 Service Pack 2 is available

Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

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

Prerequisites
You must have SQL Server 2005 Service Pack 2 installed to apply this hotfix.

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:

913089 How to obtain the latest service pack for SQL Server 2005

Restart information
You do not have to restart the computer after you apply this hotfix. However, the Analysis Services service automatically stops and then restarts when you apply this hotfix.

If the computer on which you apply this hotfix is configured for HTTP access, you must stop Internet Information Services (IIS) before you apply this hotfix. After you apply this hotfix, you must restart IIS.

If Analysis Services is installed as a named instance, you must stop the SQL Server Browser service when you apply this hotfix. You must stop this service because this hotfix updates the Msmdredir.dll component of the SQL Server Browser service.

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 of 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.

Microsoft SQL Server 2005 Itanium-based version


WORKAROUND
To work around this issue, use one of the following methods:
 * Change the content type to Discrete for the input column that contains null training data. You must also change the underlying data from continuous data to discrete data.
 * Eliminate the null training data. For example, replace the null values with 0. Or, replace the null values with other values that make sense in the context of the data.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
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:

822499 New naming schema for Microsoft SQL Server software update packages

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Keywords: kbexpertiseadvanced kbfix kbpubtypekc kbqfe kbhotfixserver KB932180

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