Microsoft KB Archive/925419

= FIX: The server stops responding, the performance is slow, and a time-out occurs in SQL Server 2000 =

Article ID: 925419

Article Last Modified on 11/2/2007

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APPLIES TO


 * Microsoft SQL Server 2000 Developer Edition
 * Microsoft SQL Server 2000 Enterprise Edition
 * Microsoft SQL Server 2000 Standard Edition
 * Microsoft SQL Server 2000 Personal Edition
 * Microsoft SQL Server 2000 Workgroup Edition

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Bug #: 50000269 (SQL Hotfix)

Bug #: 469810 (SQL Server 8.0)

Bug #: 475051 (SQL Server 8.0)



Microsoft distributes Microsoft SQL Server 2000 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 2000 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
In Microsoft SQL Server 2000, you perform one of the following operations:   You run the following statement. DBCC FREEPROCCACHE  You perform an ALTER DATABASE operation. You run the sp_configure stored procedure, or you run the sp_detach_db stored procedure. You restore a database.

When you perform one of these operations, the following symptoms may occur:
 * The server stops responding.
 * The performance is slow when you run a query.
 * A time-out occurs when you run a query.

Additionally, the following error message may be logged in the SQL Server 2000 error log:

Error: 17883, Severity: 1, State: 0

Process 51:0 (dbc) UMS Context 0x018DA930 appears to be non-yielding on Scheduler 0.



CAUSE
This problem occurs because SQL Server takes a long time to free a large procedure cache. The operations that are mentioned in the &quot;Symptoms&quot; section trigger a process to free the procedure cache. If the procedure cache is large, this problem occurs.



Hotfix information
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only 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 2000 service pack that contains this hotfix.

To resolve this problem immediately, 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:

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
 Microsoft SQL Server 2000 Service Pack 4 (SP4)

For information about how to obtain SQL Server 2000 SP4, click the following article number to view the article in the Microsoft Knowledge Base:

290211 How to obtain the latest SQL Server 2000 service pack

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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 2000, Itanium architecture version
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STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

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MORE INFORMATION
This hotfix fixes only one cause of error 17883. In some cases, you may still receive error 17883 after you apply this hotfix.

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

319892 New concurrency and scheduling diagnostics have been added to SQL Server

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

Additional query words: 17883 dbcc freeproccache hang

Keywords: kbexpertiseadvanced kbfix kbpubtypekc kbqfe kbhotfixserver KB925419

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