OpenRasta IIS6间歇性HTTP 404

Question

背景

我有一个使用OpenRasta构建的API，它将JSON编码的数据提供给支持HTML / AJAX的界面。

问题

当使用IIS 6托管时，我在查询资源时遇到间歇性404错误。应用程序池重启后，一切正常;在几次成功请求之后，404错误开始并持续，直到应用程序池被回收。我已经确认在IIS 6中设置了ISAPI映射，我缺少什么？

间歇性失败请求的跟踪输出

Unregistering host of type OpenRasta.Hosting.AspNet.AspNetHost

成功请求比较的跟踪输出（命名空间和资源URI）

Registering host of type OpenRasta.Hosting.AspNet.AspNetHost
Using dependency resolver of type OpenRasta.DI.InternalDependencyResolver.
Registering host's root dependencies..
Using dependency registrar of type OpenRasta.Configuration.DefaultDependencyRegistrar..
Ignoring constructor, following dependencies didn't have a registration:OpenRasta.TypeSystem.Surrogates.ISurrogateBuilder[].
Registering host's leaf dependencies..
Using configuration source <namespace>.api.Configuration.
Ignoring constructor, following dependencies didn't have a registration:System.Func`1[System.Collections.Generic.IEnumerable`1[OpenRasta.Configuration.MetaModel.Handlers.IMetaModelHandler]].
Ignoring constructor, following dependencies didn't have a registration:System.Diagnostics.TraceSource.
Ignoring constructor, following dependencies didn't have a registration:OpenRasta.OperationModel.MethodBased.IMethodFilter[].
Incoming host request for http://<resource URI>.
Adding communication context data.
Entering OpenRastaRewriterHandler: Rewriting to original path.
Entering OpenRastaIntegratedHandler: Request for http://<resource URI>.
Incoming host request for http://<resource URI>.
Adding communication context data.
Found 1 operation(s) with a matching name..
Found 0 operation(s) with matching [HttpOperation] attribute..
Operation <handler>::Get() selected with 0 required members and 0 optional members, without request codec.
Ignoring constructor, following dependencies didn't have a registration:OpenRasta.OperationModel.Interceptors.IOperationInterceptor[].
Executing OperationResult OperationResult: type=OK, statusCode=200..
Selected codec JsonDataContractCodec out of 1 codecs for entity of type List`1 and negotiated media type application/json; q=0.5..
Codec JsonDataContractCodec selected..
Entering ResponseEntityWriterContributor: Generating response entity..
Setting Content-Length to 133.
Exiting ResponseEntityWriterContributor.
Writing http headers..
Exiting OpenRastaIntegratedHandler.
Exiting OpenRastaRewriterHandler.
Request finished..

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从GitHub master构建的OpenRasta.Hosting.AspNet.dll：