Microsoft KB Archive/814693

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FIX: SQL Server 7.0 Scheduler May Periodically Stop Responding During Large Sort Operation

Article ID: 814693

Article Last Modified on 9/27/2005



APPLIES TO

  • Microsoft SQL Server 7.0 Standard Edition



BUG #: 103075 (SQLBUG_70)

SYMPTOMS

Under some rare conditions, SQL Server may report the following error message in the error log when it processes a query that includes a large, long running sort operation:

2003-02-10 17:02:54.39 ods The Scheduler 2 appears to be hung. PSS 0x5F8B3110, EC 0x5F8B32C0, UMS Context 0x050D07D8



This error message may be repeated in the error log as frequently as one time per minute, while the query is running. In some cases, the error message may also be accompanied by other symptoms. For example, SQL Server might be slow to respond to other requests. After the query completes, the server will generally return to normal operation.

A sort operation that triggers this issue may occur as a result of various Transact-SQL commands including an ORDER BY clause, a MERGE JOIN operation, or the creation of an index.

RESOLUTION

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone 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.

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
   -----------------------------------------------------------------------
   04-Oct-2002  23:59  7.00.1081          28,944 bytes  Dbmssocn.dll     
   06-Sep-2002  23:55  7.00.1077          53,520 bytes  Distrib.exe      
   06-Sep-2002  23:55  7.00.1077          98,576 bytes  Logread.exe      
   15-Jan-2003  23:30                     99,336 bytes  Opends60.dbg
   15-Jan-2003  23:31  7.00.1085         160,016 bytes  Opends60.dll     
   06-Sep-2002  23:56  7.00.1077         250,128 bytes  Rdistcom.dll     
   06-Sep-2002  23:55  7.00.1077          82,192 bytes  Replmerg.exe     
   06-Sep-2002  23:56  7.00.1077          78,096 bytes  Replres.dll      
   17-Sep-2002  22:52                      7,941 bytes  Securityhotfix.sql
   15-Jan-2003  23:31  7.00.1085         413,696 bytes  Semsys.dll       
   15-Jan-2003  20:14  7.00.1085         114,688 bytes  Semsys.rll
   06-Sep-2002  23:56  7.00.1077         160,016 bytes  Snapshot.exe     
   08-Feb-2003  00:49                     63,834 bytes  Sp4_serv_uni.sql
   15-Jan-2003  01:33  7.00.1085         344,064 bytes  Sqlagent.exe     
   06-Sep-2002  23:55  7.00.1077          45,056 bytes  Sqlcmdss.dll     
   14-Feb-2003  05:52  7.00.1087       5,062,928 bytes  Sqlservr.exe     
   04-Oct-2002  23:59  7.00.1081          45,328 bytes  Ssmsso70.dll     
   17-Dec-2002  01:36  7.00.1083          24,848 bytes  Ssnmpn70.dll     
   26-Sep-2002  20:30                     28,408 bytes  Ums.dbg
   26-Sep-2002  20:27  7.00.1079          57,616 bytes  Ums.dll          
   17-Sep-2002  23:00  7.00.1077         151,552 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 at the beginning of this article.

Keywords: kbbug kbfix kbqfe kbsqlserv700presp5fix kbhotfixserver KB814693