Event ID 1362 is logged in the Application log every five minutes in Exchange Server 2003 Service Pack 2

You do not experience any Microsoft Exchange Server production issues. However, an event that is similar to the following event is logged in the Application log every five minutes in Microsoft Exchange Server 2003 Service Pack 2 (SP2):

Event ID : 1362
Category : LDAP
Interface Source : MSExchangeSRS
Type : Warning
Date : Date
Time : Time
Machine : Computer_Name
Message : Unable to update LDAP referral list. If the referral list was just modified, stop and restart Exchange Site Replication service.

When you restart the Microsoft Exchange Information Store service, the event is no longer logged every five minutes. However, these symptoms occur again after a random time.

This problem occurs when the variable that tracks the number of threads that update the Lightweight Directory Access Protocol (LDAP) referral list does not have a value of zero. The problem occurs regardless of whether the value is positive or negative.

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

You must install Microsoft Exchange Server 2003 Service Pack 2 (SP2) before you apply the hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Restart requirement

You do not have to restart the computer when you apply this hotfix. However, the Microsoft Exchange Information Store service and all other dependent services are restarted when you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The global version of this hotfix has the file attributes (or later file attributes) 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.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

The value of the variable that tracks the number of threads that update the LDAP referral list can be set to a value other than zero by a race condition. A race condition sometimes occurs when the computer tries to perform two or more operations at the same time. However, the nature of the operations requires that the operations be performed in sequence. For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:

For more information about a hotfix for Microsoft Exchange Server 2003 Service Pack 1, click the following article number to view the article in the Microsoft Knowledge Base: