Article ID: 818095
Article Last Modified on 11/2/2007
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
SYMPTOMS
SQL Server may run slowly, and the SQL Server error log contains error messages that repeat continuously (as frequently as several times per second). The error messages are similar to:
Note that in this particular message that the values for "OS Reserved", "OS Committed" and "OS In Use" are all greater than 30000. This value is specified in 8 KB blocks, so the numbers indicate that SQL Server has allocated almost 300 MB of memory in addition to what is allocated for the buffer pool (the memory sizevalue of the sp_configure stored procedure).
RESOLUTION
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 File name ---------------------------------------------------------------------------- 26-Feb-2003 03:41 2000.80.777.0 29,244 bytes Dbmslpcn.dll 08-Feb-2003 05:43 786,432 bytes Distmdl.ldf 08-Feb-2003 05:43 2,359,296 bytes Distmdl.mdf 30-Jan-2003 01:55 180 bytes Drop_repl_hotfix.sql 01-Feb-2003 00:32 2000.80.763.0 1,557,052 bytes Dtsui.dll 30-Jan-2003 05:18 746,470 bytes Instdist.sql 30-Jan-2003 01:55 1,402 bytes Inst_repl_hotfix.sql 08-Feb-2003 06:40 2000.80.765.0 90,692 bytes Msgprox.dll 01-Apr-2003 02:07 1,873 bytes Odsole.sql 05-Apr-2003 01:46 2000.80.800.0 62,024 bytes Odsole70.dll 02-Apr-2003 21:48 2000.80.796.0 57,904 bytes Osql.exe 02-Apr-2003 23:15 2000.80.797.0 279,104 bytes Pfutil80.dll 04-Apr-2003 21:27 1,083,467 bytes Replmerg.sql 04-Apr-2003 21:53 2000.80.798.0 221,768 bytes Replprov.dll 08-Feb-2003 06:40 2000.80.765.0 307,784 bytes Replrec.dll 01-Apr-2003 02:23 1,084,828 bytes Replsys.sql 03-Apr-2003 18:14 104,868 bytes Sp3_serv_uni.sql 19-Mar-2003 18:20 2000.80.789.0 28,672 bytes Sqlevn70.rll 28-Feb-2003 01:34 2000.80.778.0 176,696 bytes Sqlmap70.dll 08-Feb-2003 06:40 2000.80.765.0 57,920 bytes Sqlrepss.dll 05-Apr-2003 01:47 2000.80.800.0 7,540,817 bytes Sqlservr.exe 08-Feb-2003 06:40 2000.80.765.0 45,644 bytes Sqlvdi.dll 26-Feb-2003 03:41 2000.80.777.0 29,244 bytes Ssmslpcn.dll 26-Feb-2003 03:41 2000.80.777.0 82,492 bytes Ssnetlib.dll 17-Mar-2003 14:49 727,132 bytes Sysmessages.sym 28-Feb-2003 01:34 2000.80.778.0 98,872 bytes Xpweb70.dll
Note Because of file dependencies, the most recent hotfix or feature that contains the files may also contain additional files.
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.This problem was first corrected in Microsoft SQL Server 2000 Service Pack 4.
SQL Server tries to use memory from the buffer pool for most internal allocations, but requests greater than 8 KB are routed to the normal operating system allocators. By default, SQL Server leaves a limited amount of address space for these types of allocations and also for things such as thread stack space, COM objects, extended stored procedures, and so on. You can modify the size of this region by using the -g command line parameter. For more information about the -g parameter, see SQL Server Books Online.
When SQL Server tries to allocate virtual memory for one of these large allocations, and that operation fails, it will try to remove cached query plans in hopes of freeing some of this memory. Before SQL Server 2000 Service Pack 3 (SP3), this operation would remove all query plans from cache, even if they were not using any of this memory. SQL Server 2000 SP3 introduced a change whereby only query plans that are known to be using this memory are removed from cache. This change introduced a problem where some query plans for cursors were not being removed.
Even with this fix, you might see the error message occasionally. Over time (minutes to hours) there may be additional cached plans that build up and the message occurs again. This can be normal and by itself should not be taken as a sign of a problem.
Keywords: kbbug kbfix kbqfe kbsqlserv2000presp4fix kbhotfixserver KB818095