Microsoft KB Archive/814693

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

Article ID: 814693

Article Last Modified on 9/27/2005

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APPLIES TO


 * Microsoft SQL Server 7.0 Standard Edition

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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:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

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

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