我们的虚拟应用程序关闭时遇到问题。站点正在运行ASP.NET 4.5
例外摘要:
System.InvalidOperationException: Request to the service at '~/Services/ServiceExceptionLogger.svc' cannot be dispatched because the virtual application at '/Site' is shutting down.
堆栈跟踪:
System.ServiceModel.ServiceActivationException: Request to the service at
'~/Services/ServiceExceptionLogger.svc' cannot be dispatched because the virtual application
at '/Site' is shutting down. ---> System.InvalidOperationException: Request to the service at '~/Services/ServiceExceptionLogger.svc' cannot be dispatched because the virtual
application at '/Site' is shutting down.
--- End of inner exception stack trace ---
at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)
at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result)
at System.Web.HttpApplication.CallHandlerExecutionStep.OnAsyncHandlerCompletion(IAsyncResult ar)
或者这是在事件日志中显示的另一个版本
堆栈追踪:
System.ServiceModel.ServiceActivationException: Request to the service at '~/Services/Service.svc' cannot be dispatched because the virtual application at '/Site' is shutting down. ---> System.InvalidOperationException: Request to the service at '~/Services/Service.svc' cannot be dispatched because the virtual application at '/Site' is shutting down.
--- End of inner exception stack trace ---
at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)
at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result)
at System.Web.HttpApplication.CallHandlerExecutionStep.OnAsyncHandlerCompletion(IAsyncResult ar)
以前有人有任何想法或看过这个吗?似乎在我们的某个环境中频繁发生,例如每天10次以上。在质量保证环境中,它根本没有发生。两个环境的空闲超时设置为20分钟。超时20分钟的原因是为了避免浪费内存
找到有关记录应用程序池回收的一些补充信息更新2:显然,当发生上述异常时,应用程序池不会回收。我们正在观察任务管理器中的进程,并且在发生此异常时它不会关闭或减少内存。此外,发生此异常时不会发生日志条目(请参阅更新1)
答案 0 :(得分:3)
将此升级到Microsoft支持后,我们认为此问题是.NET 4.5.1的错误。它最常发生在集成模式下运行,但也发生在经典模式下,尽管频率较低。我们无法确定实际案例或问题,但似乎没有在较旧的.NET运行时发生。
答案 1 :(得分:2)
假设这就是您所遇到的问题:
在IIS中,应用程序池在不活动后每隔约20分钟(我不记得确切的默认时间)自行回收。
虽然在IIS管理器下的应用程序池的“高级设置”下,这是可以更改的。