MSExchange Availability 4018

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Letztes Änderungsdatum des Themas: 2011-03-19

Dieser Artikel bietet eine Erläuterung und mögliche Lösungen für ein bestimmtes Exchange-Ereignis. Wenn Sie hier das Gesuchte nicht finden können, durchsuchen Sie die Exchange 2010-Hilfe.

Details

Product Name

Exchange

Product Version

14.0

Event ID

4018

Category

Availability Service

Symbolic Name

CASDiscoveryExceptionHandled

Message Text

Process %1: An exception occurred while attempting to locate a Client Access server to handle a request for e-mail address %2. The returned exception is %3.

Explanation

This Error event indicates that a failure occurred while locating the Microsoft Exchange Client Access server that retrieves Schedule+ Free Busy information for the e-mail address specified in the event description. This event may occur for multiple reasons.

Note   This event occurs when the diagnostic logging level of Availability Service is set to Low. For more information about how to change diagnostic logging levels, see Change Logging Levels for Exchange Processes.

User Action

For more information about the root cause of this error, do one or more of the following:

  • Increase the diagnostic logging level on the Availability Service and Availability Service General counter of the MSExchange Availability performance object. You can increase logging by running the following Exchange Management Shell commands:
    Set-EventLogLevel "MSExchange Availability\Availability Service" -Level High
    Set-EventLogLevel "MSExchange Availability\Availability Service General" -Level High
    For more information about increasing diagnostic logging levels, see Change Logging Levels for Exchange Processes.
  • Review the Application event log for related events. Events that occur immediately before and after this event may provide more information about the root cause of this error.
    Important After you have completed troubleshooting this issue, return logging to the default level by running the following commands: Set-EventLogLevel "MSExchange Availability\Availability Service" -Level Lowest
    Set-EventLogLevel "MSExchange Availability\Availability Service General" -Level Lowest
  • If this event seems to be causing mail flow interruptions or other problems in the Exchange environment, contact Microsoft Product Support. For information about how to contact support, visit the Microsoft Help and Support Web site.

For More Information

Wenn dies nicht bereits der Fall ist, sollten Sie die Exchange-Tools ausführen, die für die Analyse und Problembehandlung der Exchange-Umgebung erstellt wurden. Mit diesen Tools kann sichergestellt werden, dass Ihre Konfiguration die bewährten Methoden von Microsoft einhält. Sie tragen zudem zur Identifikation und zur Lösung von Leistungsproblemen bei, und können die Nachrichtenübermittlung verbessern. Sie können diese Tools über den Knoten Toolbox in der Exchange-Verwaltungskonsole ausführen. Weitere Informationen zu diesen Tools finden Sie unter Verwalten von Tools in der Toolbox.