Consider the following scenario. In an application, you use the managed SqlClient provider to connect to an instance of Microsoft SQL Server 2005. The
instance of SQL
Server 2005 is configured to use database
mirroring. Additionally, you specify a failover partner server in
the connection string of the application.
In
this scenario, you may receive the following error message when
you connect to the principal server after
failover occurs:
Internal .Net Framework Data Provider error
6
Additionally, the following error message may be logged in the SQL
Server error log:
Error: 18456, Severity: 14,
State: 16.
Login failed for user
DomainName/UserName
This problem occurs because the code in the System.Data.dll file
does not correctly process state
changes for the current
connections in the connection pool. This behavior occurs when you specify a failover partner server in
the connection string of the application.
Hotfix information
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that this article describes. Apply it only to systems that are experiencing this specific problem.
To resolve this problem, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
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.
Restart information
You do not have to restart the computer after you apply this
hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
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.
The .NET Framework 2.0, x86-based versions
Collapse this tableExpand this table
| File name | File version | File
size | Date | Time | Platform |
|---|
| System.data.dll | 2.0.50727.948 | 2,903,552 | 26-Oct-2007 | 03:22 | x86 |
The .NET Framework 2.0, x64-based versions
Collapse this tableExpand this table
| File name | File version | File
size | Date | Time | Platform |
|---|
| System.data.dll | 2.0.50727.948 | 2,969,600 | 25-Oct-2007 | 22:49 | x64 |
| System.data.dll | 2.0.50727.948 | 2,903,552 | 26-Oct-2007 | 03:22 | x86 |
The .NET Framework 2.0, Itanium-based versions
Collapse this tableExpand this table
| File name | File version | File
size | Date | Time | Platform |
|---|
| System.data.dll | 2.0.50727.948 | 3,111,936 | 26-Oct-2007 | 00:05 | IA-64 |
| System.data.dll | 2.0.50727.948 | 2,903,552 | 26-Oct-2007 | 03:22 | x86 |
This hotfix is not included in the .NET Framework 2.0 Service Pack 1 (SP1). If you are using the .NET Framework 2.0 SP1, you must apply the following rollup package:
948815Â
(http://kbalertz.com/Feedback.aspx?kbNumber=948815/
)
Availability of the .NET Framework 2.0 post-Service Pack 1 hotfix rollup package for System.Data.dll and System.Data.OracleClient.dll
Microsoft
has confirmed that this is a problem in the Microsoft products that are listed
in the "Applies to" section.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684Â
(http://kbalertz.com/Feedback.aspx?kbNumber=824684/
)
Description of the standard terminology that is used to describe Microsoft software updates