DOCUMENT:Q153584 30-JUL-2001 [sms] TITLE :SMS: Data Loader Uses UPDATE STATISTICS Command Multiple Times PRODUCT :Microsoft Systems Management Server PROD/VER:winnt:1.0,1.1 OPER/SYS: KEYWORDS:kbnetwork kbDataLoader smsdataloader ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Systems Management Server versions 1.0, 1.1 ------------------------------------------------------------------------------- SYMPTOMS ======== The SQL Server updates the index statistics on some SMS tables during every Data Loader service processing cycle. This almost constant updating is inefficient and could adversely impact the performance of SQL and SMS on sites that process a large number of systems and MIF files. CAUSE ===== The SMS Data Loader issues an UPDATE STATISTICS command to the SQL Server during every processing cycle. In most cases, this is done to keep SQL Server indexes efficient. Since this is done during every Data Loader processing cycle, this could impact SQL Server and SMS Data Loader performance. RESOLUTION ========== This has been fixed in SMS 1.2. The SMS 1.2 DATA LOADER service will issue this command to the SMS tables every 48 hours between the hours of 12:00am to 5:00am. STATUS ====== Microsoft has confirmed this to be a problem in Systems Management Server versions 1.0 and 1.1. This problem has been corrected in Systems Management Server version 1.2. Additional query words: prodsms dataloader SQL update ====================================================================== Keywords : kbnetwork kbDataLoader smsdataloader Technology : kbSMSSearch kbSMS100 kbSMS110 Version : winnt:1.0,1.1 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.