Microsoft KB Archive/810052

= FIX: A Memory Leak Occurs When Cursors Are Opened During a Connection =

Article ID: 810052

Article Last Modified on 11/2/2007

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APPLIES TO


 * Microsoft SQL Server 2000 Developer Edition
 * Microsoft SQL Server 2000 Standard Edition
 * Microsoft SQL Server 2000 Enterprise Edition
 * Microsoft SQL Server 2000 Personal Edition
 * Microsoft SQL Server 2000 Enterprise Edition
 * Microsoft SQL Server 2000 Workgroup Edition
 * Microsoft SQL Server 2000 Desktop Engine (Windows)
 * Microsoft SQL Server 2000 Developer Edition
 * Microsoft SQL Server 2000 Enterprise Edition 64-bit

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BUG #: 362971 (SHILOH_BUGS)



SYMPTOMS
When you close a database connection, a memory leak occurs if the client application made a call during the connection that caused a server cursor to open. For example, a server cursor opens when the sp_cursoropen stored procedure is called.

In severe cases, the client application may receive out-of-memory errors, such as

Msg 17803: Insufficient memory available.

-or-

Msg 701: There is insufficient system memory to run this query.

or the error log file may contain a message that is similar to the following one:

Buffer Distribution: Stolen=203317 Free=333 Procedures=161

Inram=0 Dirty=16283 Kept=0

I/O=0, Latched=479, Other=450547

Buffer Counts: Commited=671120 Target=671120 Hashed=347309

InternalReservation=667 ExternalReservation=1299 Min Free=512

Procedure Cache: TotalProcs=36 TotalPages=161 InUsePages=79

Dynamic Memory Manager: Stolen=203310 OS Reserved=1664

OS Committed=1635

OS In Use=1599

Query Plan=204 Optimizer=120

General=122887

Utilities=49 Connection=223

Global Memory Objects: Resource=1984 Locks=289

SQLCache=101 Replication=2

LockBytes=2 ServerGlobal=43

Xact=120037

Query Memory Manager: Grants=2 Waiting=0 Maximum=2229 Available=762

The small leak occurs only when you disconnect.



Service pack information
To resolve this problem, obtain the latest service pack for Microsoft SQL Server 2000. For additional information, 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

Hotfix information
The English version of this fix has the file attributes (or later) 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. Date       Time    Version     Size        Filename - 01-Jul-2002 20:07          10,794      Sp2_qfe_serv_uni.sql 01-Nov-2002 00:01  2000.80.696.0   7,467,089   Sqlservr.exe 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 Microsoft SQL Server 2000 Service Pack 4.

Keywords: kbbug kbfix kbqfe kbsqlserv2000presp4fix kbhotfixserver KB810052

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