Article ID: 818767
Article Last Modified on 10/25/2005
APPLIES TO
- Microsoft SQL Server 2000 Service Pack 3
- Microsoft Windows 2000 Standard Edition
BUG #: 469415 (SQL Server 8.0)
SYMPTOMS
If transaction log stalls occur, a computer running SQL Server may experience CPU usage that was not expected. This usage occurs because of poor log file performance or because database backups are in progress.
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 Dbmslpcn.dll 25-Apr-2003 02:12 786,432 Distmdl.ldf 25-Apr-2003 02:12 2,359,296 Distmdl.mdf 30-Jan-2003 01:55 180 Drop_repl_hotfix.sql 07-Apr-2003 19:15 2000.80.801.0 1,557,052 Dtsui.dll 24-Apr-2003 02:51 747,927 Instdist.sql 30-Jan-2003 01:55 1,402 Inst_repl_hotfix.sql 08-Feb-2003 06:40 2000.80.765.0 90,692 Msgprox.dll 01-Apr-2003 02:07 1,873 Odsole.sql 05-Apr-2003 01:46 2000.80.800.0 62,024 Odsole70.dll 02-Apr-2003 21:48 2000.80.796.0 57,904 Osql.exe 02-Apr-2003 23:15 2000.80.797.0 279,104 Pfutil80.dll 04-Apr-2003 21:27 1,083,467 Replmerg.sql 04-Apr-2003 21:53 2000.80.798.0 221,768 Replprov.dll 08-Feb-2003 06:40 2000.80.765.0 307,784 Replrec.dll 01-Apr-2003 02:23 1,084,828 Replsys.sql 16-Apr-2003 22:39 115,892 Sp3_serv_uni.sql 07-Apr-2003 17:44 25,172 Sqldumper.exe 19-Mar-2003 18:20 2000.80.789.0 28,672 Sqlevn70.rll 24-Apr-2003 05:39 2000.80.811.0 176,696 Sqlmap70.dll 08-Feb-2003 06:40 2000.80.765.0 57,920 Sqlrepss.dll 30-Apr-2003 23:52 2000.80.816.0 7,540,817 Sqlservr.exe 08-Feb-2003 06:40 2000.80.765.0 45,644 Sqlvdi.dll 26-Feb-2003 03:41 2000.80.777.0 29,244 Ssmslpcn.dll 26-Feb-2003 03:41 2000.80.777.0 82,492 Ssnetlib.dll 30-Apr-2003 23:52 2000.80.816.0 45,132 Ums.dll 28-Feb-2003 01:34 2000.80.778.0 98,872 Xpweb70.dll
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 at the beginning of this article. This problem was first corrected in Microsoft SQL Server 2000 Service Pack 4.
MORE INFORMATION
The problem can be triggered by snapshot backups because the snapshot backup process involves the freeze and thaw of I/O operations. The freeze activity holds up all physical I/O activity until the thaw is issued at the end of the snapshot backup operation. In doing so, a code change that was made in SQL Server 2000 Service Pack 2 (SP2) results in heavier CPU usage than in earlier versions of SQL Server. The scalability change in SQL Server 2000 SP2 makes the log code scale better on multiprocessor computers. This change can, however, result in heavier CPU usage under rare conditions.
Keywords: kbhotfixserver kbqfe kbqfe kbsqlserv2000presp4fix kbfix kbbug KB818767
