The MSExchangeAL service logged an unexpected exception
Topic Last Modified: 2007-11-16
The Microsoft Exchange Server 2007 Management Pack for Operations Manager monitors the Windows Application log on computers that are running Exchange Server 2007 and generates this alert when the event or events specified in the following Details table are logged.
To learn more about this alert, if you are using Microsoft Operations Manager 2005, do one or more of the following:
From the Operator Console, select this alert, and then click the Properties tab. Review the description of the alert that includes the variables specific to your environment.
From the Operator Console, click the Events tab, and then double-click the event in the list for which you want to review the event description. Review the events that have been logged that meet the criteria of this Operations Manager alert.
To learn more about this alert, if you are using System Center Operations Manager 2007, do one or more of the following:
From the Operations Console, double-click this alert, and then click the General tab. Review the description of the alert that includes the variables specific to your environment.
From the Operations Console, double-click this alert, and then click the Alert Context tab. Review the events that have been logged that meet the criteria of this Operations Manager alert.
Details
Product Name |
Exchange |
Product Version |
8.0 (Exchange Server 2007) |
Event ID |
8331;8142 |
Event Source |
MSExchangeAL |
Alert Type |
Critical Error |
MOM Rule Path |
Microsoft Exchange Server/Exchange 2007/Mailbox/System Attendant |
MOM Rule Name |
The MSExchangeAL service logged an unexpected exception. The exception is specified in the event description. |
Explanation
This alert event may be triggered by multiple causes.
Event 8331 indicates that the Address List Service cannot stamp Microsoft Exchange attributes on Active Directory directory service objects. When this event is being logged, users may not appear in the global address list (GAL). Additionally, users may not be able to access their Exchange mailboxes. These GAL display problems and mailbox access problems may occur if an internal class incorrectly processes certain threads that run at the same time.
Event 8142 is generated by code that can be called from other processes. It is the responsibility of the calling process to handle the exception. Similarly, the method by which you resolve this error varies greatly depending on what triggered this event in your particular Exchange environment.
User Action
To resolve this event, do one or more of the following:
Review the Application log for related events. For example, events that occur immediately before and after this event may provide more information about the root cause of this error.
Examine the server for a dump file produced by Dr. Watson, the Windows server default debugger.
If you are having difficulty resolving the issue, contact Microsoft Product Support. For information about contacting support, visit the Contact Us page of the Microsoft Help and Support Web site.
User Action
For More Information
To search the Microsoft Knowledge Base articles based on criteria that generated this alert, visit the Search the Support Knowledge Base (KB) Web site.
To review Exchange Server 2007 event message articles that may not be represented by Exchange 2007 alerts, see the Events and Errors Message Center.
If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.