Article ID: 884850
Article Last Modified on 6/1/2006
APPLIES TO
- Microsoft SQL Server 2000 Standard Edition
- Microsoft SQL Server 2000 64-bit Edition
Bug #: 472458 (SQL Server 8.0)
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.
- Whether you must restart your 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.
INTRODUCTION
Issues that are fixed by this hotfix package
The following issue is fixed in this Microsoft SQL Server 2000 hotfix package:
- When you run ad-hoc queries in Microsoft SQL Server 2000, ad-hoc query processing performance degradation occurs. When the performance degradation occurs, you may see that there are many system process IDs (SPID) in the sysprocesses table. Additionally, the lastwaittype column in the sysprocesses table has a CMEMTHREAD value.
Note This problem is more prevalent on computers that are running Microsoft SQL Server 2000 64-bit than on computers that are running Microsoft SQL Server 2000 32-bit. The problem occurs because of the larger buffer pool sizes available to the 64-bit architecture. To date, this problem has occurred on computers that have a procedure cache that is larger than 16 GB.
For a list of previous hotfixes, see the "Microsoft SQL Server 2000 Post-Service Pack 3 or Microsoft SQL Server 2000 Post-Service Pack 3a hotfixes" section in the following Microsoft Knowledge Base article:
290211 How to obtain the latest SQL Server 2000 service pack
CAUSE
This problem occurs when one of the following conditions is true:
- A large percentage of the workload is submitted without using defined parameters from a front end application.
- The procedure cache has grown very large. When the procedure cache grows very large, the memory allocation for new queries may become inefficient.
RESOLUTION
Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it 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 Microsoft SQL Server 2000 service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product 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.
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Prerequisites
- Microsoft SQL Server 2000 Service Pack 3 (SP3) or Microsoft SQL Server 2000 Service Pack 3a (SP3a)
For additional information about how to obtain SQL Server 2000 Service Pack 3, 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
For additional information about the SQL Server 2000 hotfix installers, click one of the following article numbers to view the article in the Microsoft Knowledge Base:
842960 Description of the 32-bit SQL Server 7.0 and SQL Server 2000 hotfix installer
872912 Description of the 64-bit SQL Server 2000 hotfix installer
Restart information
You must restart your instance of SQL Server 2000 after you apply this hotfix.
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Registry information
You do not have to make changes to the registry.
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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) 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.
SQL Server 2000 32-bit versions
Date Time Version Size File name ---------------------------------------------------------------------- 15-Sep-2004 02:40 2000.80.977.0 664,128 Autoplt.dll 15-Sep-2004 02:40 2000.80.977.0 78,400 Console.exe 15-Sep-2004 02:40 2000.80.977.0 332,352 Ctasksui.dll 15-Sep-2004 02:40 2000.80.977.0 315,968 Custtask.dll 15-Sep-2004 02:40 2000.80.977.0 33,340 Dbmslpcn.dll 08-Apr-2004 21:42 786,432 Distmdl.ldf 08-Apr-2004 21:42 2,359,296 Distmdl.mdf 30-Sep-2003 22:55 180 Drop_repl_hotfix.sql 15-Sep-2004 02:40 2000.80.977.0 1,905,216 Dtspkg.dll 15-Sep-2004 02:40 2000.80.977.0 528,960 Dtspump.dll 15-Sep-2004 02:40 2000.80.977.0 1,557,052 Dtsui.dll 15-Sep-2004 02:40 2000.80.977.0 639,552 Dtswiz.dll 30-Sep-2003 22:55 747,927 Instdist.sql 30-Sep-2003 22:55 1,581 Inst_repl_hotfix.sql 15-Sep-2004 02:40 2000.80.977.0 352,828 Isqlw.exe 15-Sep-2004 02:40 2000.80.977.0 82,492 Itwiz.exe 15-Sep-2004 02:40 2000.80.977.0 90,692 Msgprox.dll 19-May-2004 23:43 8.11.40209.0 209,408 Mssdi98.dll 15-Sep-2004 02:40 2000.80.977.0 62,024 Odsole70.dll 15-Sep-2004 02:41 2000.80.977.0 25,144 Opends60.dll 15-Sep-2004 02:40 2000.80.977.0 57,904 Osql.exe 15-Sep-2004 02:40 2000.80.977.0 279,104 Pfutil80.dll 30-Sep-2003 22:48 550,780 Procsyst.sql 08-Apr-2004 21:42 12,305 Qfe469315.sql 08-Apr-2004 21:42 19,195 Qfe469571.sql 27-Aug-2004 00:13 5,157 Qfe472197.sql 15-Sep-2004 02:40 2000.80.977.0 143,940 Qrdrsvc.exe 13-Sep-2004 22:09 1,105,167 Replmerg.sql 15-Sep-2004 02:40 2000.80.977.0 221,768 Replprov.dll 15-Sep-2004 02:40 2000.80.977.0 307,784 Replrec.dll 13-Sep-2004 18:16 2000.80.977.0 159,813 Replres.rll 27-Aug-2004 00:13 1,086,925 Replsys.sql 30-Sep-2003 22:55 986,603 Repltran.sql 15-Sep-2004 02:40 2000.80.977.0 287,304 Rinitcom.dll 15-Sep-2004 02:40 2000.80.977.0 78,416 Sdiclnt.dll 15-Sep-2004 02:41 2000.80.977.0 66,112 Semmap.dll 15-Sep-2004 02:41 2000.80.977.0 57,916 Semnt.dll 15-Sep-2004 02:41 2000.80.977.0 492,096 Semobj.dll 13-Sep-2004 18:47 2000.80.977.0 172,032 Semobj.rll 15-Sep-2004 02:40 2000.80.977.0 53,832 Snapshot.exe 30-Sep-2003 22:48 117,834 Sp3_serv_uni.sql 15-Sep-2004 02:40 2000.80.977.0 28,672 Sqlagent.dll 15-Sep-2004 02:40 2000.80.977.0 311,872 Sqlagent.exe 15-Sep-2004 02:40 2000.80.977.0 168,001 Sqlakw32.dll 15-Sep-2004 02:41 2000.80.977.0 33,344 Sqlctr80.dll 15-Sep-2004 02:41 2000.80.977.0 4,215,360 Sqldmo.dll 15-Sep-2004 02:40 25,172 Sqldumper.exe 13-Sep-2004 18:09 2000.80.977.0 28,672 Sqlevn70.rll 15-Sep-2004 02:40 2000.80.977.0 156,224 Sqlmaint.exe 15-Sep-2004 02:41 2000.80.977.0 180,792 Sqlmap70.dll 15-Sep-2004 02:41 2000.80.977.0 188,992 Sqlmmc.dll 13-Sep-2004 18:51 2000.80.977.0 479,232 Sqlmmc.rll 15-Sep-2004 02:41 2000.80.977.0 401,984 Sqlqry.dll 15-Sep-2004 02:41 2000.80.977.0 57,920 Sqlrepss.dll 15-Sep-2004 02:41 2000.80.977.0 7,708,753 Sqlservr.exe 15-Sep-2004 02:41 2000.80.977.0 590,396 Sqlsort.dll 15-Sep-2004 02:41 2000.80.977.0 45,644 Sqlvdi.dll 15-Sep-2004 02:41 2000.80.977.0 106,588 Sqsrvres.dll 15-Sep-2004 02:41 2000.80.977.0 33,340 Ssmsgnet.dll 15-Sep-2004 02:41 2000.80.977.0 33,340 Ssmslpcn.dll 15-Sep-2004 02:41 2000.80.977.0 33,340 Ssmsqlgc.dll 15-Sep-2004 02:41 2000.80.977.0 82,492 Ssnetlib.dll 15-Sep-2004 02:41 2000.80.977.0 25,148 Ssnmpn70.dll 15-Sep-2004 02:41 2000.80.977.0 123,456 Stardds.dll 15-Sep-2004 02:41 2000.80.977.0 158,240 Svrnetcn.dll 15-Sep-2004 02:40 2000.80.977.0 76,416 Svrnetcn.exe 15-Sep-2004 02:41 2000.80.977.0 49,228 Ums.dll 15-Sep-2004 02:41 2000.80.977.0 74,304 Xplog70.dll 15-Sep-2004 02:41 2000.80.977.0 98,872 Xpweb70.dll
SQL Server 2000 64-bit version
Date Time Version Size File name Platform ------------------------------------------------------------------------ 16-Sep-2004 04:28 2000.80.977.0 56,832 Dbmslpcn.dll IA-64 30-Sep-2003 22:55 180 Drop_repl_hotfix.sql 16-Sep-2004 04:27 2000.80.977.0 528,960 Dtspump.dll x86 30-Sep-2003 22:55 747,927 Instdist.sql 30-Sep-2003 22:55 1,581 Inst_repl_hotfix.sql 16-Sep-2004 04:28 2000.80.977.0 185,856 Msgprox.dll IA-64 19-May-2004 23:43 8.11.40517.0 722,944 Mssdi98.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 151,040 Odsole70.dll IA-64 16-Sep-2004 04:29 2000.80.977.0 27,136 Opends60.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 148,992 Osql.exe IA-64 30-Sep-2003 22:48 550,780 Procsyst.sql 08-Apr-2004 21:42 12,305 Qfe469315.sql 08-Apr-2004 21:42 19,195 Qfe469571.sql 27-Aug-2004 00:13 5,157 Qfe472197.sql 16-Sep-2004 04:28 2000.80.977.0 353,280 Qrdrsvc.exe IA-64 13-Sep-2004 22:09 1,105,167 Replmerg.sql 16-Sep-2004 04:28 2000.80.977.0 534,528 Replprov.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 769,024 Replrec.dll IA-64 13-Sep-2004 22:12 2000.80.977.0 146,432 Replres.rll 27-Aug-2004 00:13 1,086,925 Replsys.sql 30-Sep-2003 22:55 986,603 Repltran.sql 16-Sep-2004 04:28 2000.80.977.0 650,240 Rinitcom.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 160,768 Semmap.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 132,608 Semnt.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 88,576 Snapshot.exe IA-64 30-Sep-2003 22:48 117,834 Sp3_serv_uni.sql 16-Sep-2004 04:27 2000.80.977.0 10,240 Sqlagent.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 1,055,232 Sqlagent.exe IA-64 16-Sep-2004 04:28 2000.80.977.0 90,112 Sqlboot.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 32,256 Sqlctr80.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 13,845,504 Sqldmo.dll IA-64 16-Sep-2004 04:28 39,936 Sqldumper.exe IA-64 13-Sep-2004 21:54 2000.80.977.0 19,968 Sqlevn70.rll 16-Sep-2004 04:28 2000.80.977.0 493,568 Sqlmaint.exe IA-64 16-Sep-2004 04:28 2000.80.977.0 23,040 Sqlmap70.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 152,064 Sqlrepss.dll IA-64 16-Sep-2004 04:29 2000.80.977.0 25,211,904 Sqlservr.exe IA-64 16-Sep-2004 04:28 2000.80.977.0 616,960 Sqlsort.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 120,320 Sqlvdi.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 227,328 Sqsrvres.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 53,760 Ssmslpcn.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 59,904 Ssmsqlgc.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 255,488 Ssnetlib.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 20,992 Ssnmpn70.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 430,080 Svrnetcn.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 185,856 Svrnetcn.exe IA-64 16-Sep-2004 04:28 2000.80.977.0 183,296 Xplog70.dll IA-64 16-Sep-2004 04:28 2000.80.977.0 187,392 Xpweb70.dll IA-64
Note Because of file dependencies, the most recent hotfix that contains these files may also contain additional files.
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STATUS
Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section.
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MORE INFORMATION
The dynamic memory management architecture in SQL Server lets the data pages and the procedure cache share the same buffer pool. Typically, this design works fine because the Lazywriter process naturally ages out buffers in the buffer pool that are not being reused frequently. However, with a high rate of incoming ad-hoc queries, it is possible for the procedure cache to grow very large relative to the data cache. The large procedure cache causes the performance problems on a computer that is running Microsoft SQL Server 2000 64-bit that were mentioned earlier.
The hotfix discussed in this article improves the efficiency of SQL Server's internal memory allocation process when the procedure cache grows very large.
For additional information about the lastwaittype field in the sysprocesses table, click the following article number to view the article in the Microsoft Knowledge Base:
822101 The waittype and lastwaittype fields in the sysprocesses table
For additional 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 additional information about the terminology that Microsoft uses when correcting software after it 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
Keywords: kbbug kbfix kbqfe kbsqlserv2000presp4fix kbhotfixserver KB884850
