Microsoft KB Archive/815114

= FIX: Excessive Optimizer Memory Consumption May Occur for Queries That Have Multiple OUTER JOINS =

Article ID: 815114

Article Last Modified on 12/30/2006

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APPLIES TO


 * Microsoft SQL Server 2000 Service Pack 3

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BUG #: 364188 (SHILOH_BUGS)



SYMPTOMS
Starting with hotfix build 8.00.0677 through 8.00.0779, including SQL Server 2000 Service Pack 3 (SP3), any complex query that involves a large number of OUTER JOINS consumes excessive amounts of Optimizer memory. When the query runs, watch the performance monitor counter, SQLServer:MemoryManager:OptimizerQuery(KB), to see the high optimizer memory usage.

As a result of this extreme consumption of optimizer memory, SQL Server can experience multiple memory related errors. For example: 2003-01-30 11:24:10.82 server   Error: 17803, Severity: 20, State: 17 2003-01-30 11:24:10.82 server   Insufficient memory available.. 2003-01-30 11:28:11.90 server   Error: 17803, Severity: 20, State: 14 2003-01-30 11:28:11.90 server   Insufficient memory available.. 2003-01-30 11:28:11.90 spid54   Buffer Distribution:  Stolen=201493 Free=1206 Procedures=210 Inram=0 Dirty=12495 Kept=0 I/O=0, Latched=176, Other=570852 2003-01-30 11:28:11.90 spid54   Buffer Counts:  Commited=786432 Target=786432 Hashed=583523 InternalReservation=427 ExternalReservation=37935 Min Free=1024 2003-01-30 11:28:11.90 spid54   Procedure Cache:  TotalProcs=23 TotalPages=210 InUsePages=210 2003-01-30 11:28:11.90 spid54   Dynamic Memory Manager:  Stolen=201666 OS Reserved=13368 OS Committed=13329 OS In Use=10313 Query Plan=303 Optimizer=208512 General=2416 Utilities=36 Connection=284 2003-01-30 11:28:11.90 spid54 Global Memory Objects: Resource=2149 Locks=129 SQLCache=107 Replication=2 LockBytes=2 ServerGlobal=43 Xact=52 2003-01-30 11:28:11.90 spid54 Query Memory Manager: Grants=2 Waiting=14 Maximum=37966 Available=0 2003-01-30 11:28:11.95 spid21 BPool::Map: no remappable address found. 2003-01-30         11:28:11.98 spid59 BPool::Map: no remappable address found. 2003-01-30         11:28:11.98 spid54 BPool::Map: no remappable address found. 2003-01-30         11:28:12.00 spid86 BPool::Map: no remappable address found. Note: Of significance is the high value for OptimizerMemory=208512.



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 08-Feb-2003 03:53                  1,065,895 bytes  Replmerg.sql 08-Feb-2003 06:40  2000.80.765.0     221,768 bytes  Replprov.dll 08-Feb-2003 06:40  2000.80.765.0     307,784 bytes  Replrec.dll 30-Jan-2003 05:18                  1,084,318 bytes  Replsys.sql 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 03-Mar-2003 19:15  2000.80.780.0   7,516,241 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 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 &quot;Applies to&quot; section.This problem was first corrected in Microsoft SQL Server 2000 Service Pack 4.

Keywords: kbhotfixserver kbqfe kbqfe kbsqlserv2000presp4fix kbfix kbbug KB815114

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