Microsoft KB Archive/929376

= FIX: A &quot;17187&quot; error message may be logged in the Errorlog file when an instance of SQL Server 2005 is under a heavy load =

Article ID: 929376

Article Last Modified on 11/20/2007

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APPLIES TO


 * Microsoft SQL Server 2005 Enterprise Edition
 * Microsoft SQL Server 2005 Enterprise X64 Edition
 * Microsoft SQL Server 2005 Developer Edition
 * Microsoft SQL Server 2005 Standard Edition
 * Microsoft SQL Server 2005 Standard X64 Edition
 * Microsoft SQL Server 2005 Enterprise Edition for Itanium-based Systems

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Bug #: 50000578 (SQL Hotfix)



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 this hotfix package
 * The prerequisites for installing the hotfix package
 * Information about whether you must restart the computer after you install the hotfix package
 * Information about whether the hotfix package is replaced by any other hotfix package
 * Information about whether you must make any registry changes
 * The files that are contained in the hotfix package



SYMPTOMS
When an instance of SQL Server 2005 is under a heavy load, the following error message may be logged in the SQL Server 2005 Errorlog file:

Error: 17187, Severity: 16, State: 1.

SQL Server is not ready to accept new client connections; the connection has been closed. Wait a few minutes before trying again. If you have access to the error log, look for the informational message that indicates that SQL Server is ready before trying to connect again.

Additionally, the following error message may be logged in the Errorlog file:

Error: 17194, Severity: 16, State: 1.

The server was unable to load the SSL provider library needed to log in; the connection has been closed. SSL is used to encrypt either the login sequence or all communications, depending on how the administrator has configured the server. See Books Online for information on this error message: 0x2746.



CAUSE
This problem occurs when certain Secure Sockets Layer (SSL) functions are called outside the SQL Server process and the SSL functions are blocked. The blocked SSL functions may cause the I/O completion port (IOCP) thread not to accept new connections and to slow down existing connections when the thread processes read or write completions. The &quot;17194&quot; error message that is mentioned in the &quot;Symptoms&quot; section occurs when the client resets the connections after earlier connection failures.



Service pack information
To resolve this problem, obtain the latest service pack for SQL Server 2005. For more information, 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

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 Microsoft SQL Server 2005 Service Pack 1 (SP1) installed to apply this hotfix.

For more information about how to obtain SQL Server 2005 Service Pack 1, 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.

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.

SQL Server 2005, Itanium architecture version
Note Because of file dependencies, the most recent hotfix or feature that contains these files may also contain additional files.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in SQL Server 2005 Service Pack 2.



MORE INFORMATION
This problem only occurs on computers that can create SSL encryption. When you receive the error message that is mentioned in the &quot;Symptoms&quot; section, SQL Server 2005 may stop responding and not accept new connections. In a clustered environment, SQL Server 2005 resources might automatically fail over to other nodes.



For more 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 more information about the terminology that Microsoft uses when it corrects software after the software is released, 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

Additional query words: ssl iocp

Keywords: kbbug kbfix kbqfe kbhotfixserver kbsql2005sp2fix KB929376

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