BUG: Local Connections are Delayed up to 12 Seconds After Running DBCC Checkdb Command Several Times

ID: Q223169

The information in this article applies to:

Microsoft SQL Server version 6.5

BUG #: 18661 (SQLBUG_65)

SYMPTOMS

Local connections to SQL will show a delay of 3 to 12 seconds after dbcc Checkdb has been run multiple times. Network connections do not have a delay in establishing new connections and changing the net library or security method does not change the effect.

RESOLUTION

A supported fix that corrects this problem is now available from Microsoft, but it has not been fully regression tested and should be applied only to systems experiencing this specific problem. If you are not severely affected by this specific problem, Microsoft recommends that you wait for the next SQL Server service pack that contains this fix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://www.microsoft.com/support/supportnet/overview/overview.asp

The English version of this fix should have the following file attributes or later:


   Date      Time   Version      Size   File name   Platform
   ---------------------------------------------------------
   5/25/99  11:29   6.50.446    2,497KB SQLSERVR.EXE   Intel
   5/25/99  10:34   6.50.446      148KB OPENDS60.DLL   Intel

NOTE: Due to file dependencies, the most recent hotfix or feature that contains the preceding files may also contain additional files.

NOTE: If this product was already installed on your computer when you purchased it from the Original Equipment Manufacturer (OEM) and you need this fix, please call the Pay Per Incident number listed on the above Web site. If you contact Microsoft to obtain this fix, and if it is determined that you only require the fix you requested, no fee will be charged. However, if you request additional technical support, and if your no-charge technical support period has expired, or if you are not eligible for standard no-charge technical support, you may be charged a non-refundable fee.

For more information about eligibility for no-charge technical support, see the following article in the Microsoft Knowledge Base:

Q154871 Determining If You Are Eligible for No-Charge Technical Support

WORKAROUND

Run dbcc Checkdb during off hours and stop and restart MSSQLServer service prior to making new local connections.

STATUS

Microsoft has confirmed this to be a problem in SQL Server version 6.5.

MORE INFORMATION

Running the Maintenance Wizard in SQL Server Enterprise Manager by default runs dbcc Checkdb against the database scheduled for backup. If several databases are selected, a delay in establishing local connections may occur.

Connections from Internet Information Server (IIS) running on the same computer as SQL Server and/or Scheduled tasks on SQL Server may also be affected by this.

Additional query words: slow connections timeout ASP login MDAC ODBC Enterprise Manager


Keywords          : SSrvAdmin SSrvODS kbbug6.50.sp3 kbSQLServ650bug 
Version           : winnt:6.5
Platform          : winnt 
Issue type        : kbbug

Last Reviewed: July 2, 1999