MSExchange Availability 4018

  • 项目

 

上一次修改主题： 2011-03-19

本文对特定 Exchange 事件进行了说明并提供了可能的解决方案。如果您在此处未找到所需内容，请尝试在 Exchange 2010 帮助中进行搜索。

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 如何更改 Exchange 进程的日志记录级别.

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 如何更改 Exchange 进程的日志记录级别.

  • 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

如果您尚未执行此操作，请考虑运行 Exchange 工具，已创建这些工具以帮助您分析 Exchange 环境并对其进行疑难解答。这些工具可帮助确保您的配置与 Microsoft 最佳实践保持一致。它们还可以帮助您识别和解决性能问题，并改进邮件流。若要运行这些工具，请转到 Exchange 管理控制台的“工具箱”节点。若要了解有关这些工具的详细信息，请参阅管理工具箱中的工具。