c# - WCF 服务返回 "requested service ' .. .' could not be activated"第一次从 MVC 站点访问它

Question

我们有一个正在被 MVC3 网站访问的 WCF 服务(没有安全性)。

在开发人员机器上我们没有遇到任何问题，但是当我们的 TeamCity 安装程序构建中央版本并将其部署在 IIS7 下时，我们第一次加载 MVC3 站点并访问 WCF 服务 - 服务调用返回消息:

System.ServiceModel.ServiceActivationException: The requested service, 'http://localhost:83/ABCStaticData/StaticDataService.svc' could not be activated. See the server's diagnostic trace logs for more information.**

如果我们立即再次访问同一个站点，一切正常。

服务器抛出错误时的堆栈轨迹是:

服务器堆栈跟踪:

at System.ServiceModel.Channels.HttpChannelUtilities.ValidateRequestReplyResponse(HttpWebRequest request, HttpWebResponse response, HttpChannelFactory1 factory, WebException responseException, ChannelBinding channelBinding)
at System.ServiceModel.Channels.HttpChannelFactory1.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message) Exception rethrown at [0]: at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) 
at ABC.StaticData.Editor.StaticDataServiceProxy.IStaticDataService.GetAllMarkets()
at ABC.StaticData.Editor.StaticDataServiceProxy.StaticDataServiceClient.GetAllMarkets() in c:\BuildAgent\work\55a3bcc468adcccb\StaticData\ABC.StaticData.Editor\Service References\StaticDataServiceProxy\Reference.cs:line 3195
at ABC.StaticData.Editor.Controllers.MarketsController.<>c__DisplayClass22.<.ctor>b__13() in c:\BuildAgent\work\55a3bcc468adcccb\StaticData\ABC.StaticData.Editor\Controllers\MarketsController.cs:line 263
at ABC.StaticData.Editor.Controllers.MarketsController.Index() in c:\BuildAgent\work\55a3bcc468adcccb\StaticData\ABC.StaticData.Editor\Controllers\MarketsController.cs:line 306

是否有人对可能导致问题的原因或从哪里开始寻找有任何想法？

更新:我忘了首先提到，如果我们一段时间不访问该站点然后返回，它会给出相同的错误 - 然后第二次再次运行。

更新 2:这是事件日志条目文本:

WebHost failed to process a request.
 Sender Information: System.ServiceModel.ServiceHostingEnvironment+HostingManager/3043589
 Exception: System.ServiceModel.ServiceActivationException: The service '/ABCStaticData/StaticDataService.svc' cannot be activated due to an exception during compilation.  The exception message is: Could not load type 'System.Runtime.CompilerServices.AsyncStateMachineAttribute' from assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.. ---> System.TypeLoadException: Could not load type 'System.Runtime.CompilerServices.AsyncStateMachineAttribute' from assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.
   at System.ModuleHandle.ResolveType(RuntimeModule module, Int32 typeToken, IntPtr* typeInstArgs, Int32 typeInstCount, IntPtr* methodInstArgs, Int32 methodInstCount, ObjectHandleOnStack type)
   at System.ModuleHandle.ResolveTypeHandleInternal(RuntimeModule module, Int32 typeToken, RuntimeTypeHandle[] typeInstantiationContext, RuntimeTypeHandle[] methodInstantiationContext)
   at System.Reflection.RuntimeModule.ResolveType(Int32 metadataToken, Type[] genericTypeArguments, Type[] genericMethodArguments)
   at System.Reflection.CustomAttribute.FilterCustomAttributeRecord(CustomAttributeRecord caRecord, MetadataImport scope, Assembly& lastAptcaOkAssembly, RuntimeModule decoratedModule, MetadataToken decoratedToken, RuntimeType attributeFilterType, Boolean mustBeInheritable, Object[] attributes, IList derivedAttributes, RuntimeType& attributeType, IRuntimeMethodInfo& ctor, Boolean& ctorHasParameters, Boolean& isVarArg)
   at System.Reflection.CustomAttribute.IsCustomAttributeDefined(RuntimeModule decoratedModule, Int32 decoratedMetadataToken, RuntimeType attributeFilterType, Boolean mustBeInheritable)
   at System.Reflection.CustomAttribute.IsDefined(RuntimeMethodInfo method, RuntimeType caType, Boolean inherit)
   at System.Reflection.RuntimeMethodInfo.IsDefined(Type attributeType, Boolean inherit)
   at Ninject.Infrastructure.Language.ExtensionsForMemberInfo.HasAttribute(MemberInfo member, Type type)
   at Ninject.Selection.Heuristics.StandardInjectionHeuristic.ShouldInject(MemberInfo member)
   at Ninject.Selection.Selector.<>c__DisplayClassa.<SelectMethodsForInjection>b__9(IInjectionHeuristic h)
   at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate)
   at Ninject.Selection.Selector.<SelectMethodsForInjection>b__8(MethodInfo m)
   at System.Linq.Enumerable.WhereArrayIterator`1.MoveNext()
   at Ninject.Planning.Strategies.MethodReflectionStrategy.Execute(IPlan plan)
   at Ninject.Planning.Planner.<>c__DisplayClass1.<CreateNewPlan>b__0(IPlanningStrategy s)
   at Ninject.Infrastructure.Language.ExtensionsForIEnumerableOfT.Map[T](IEnumerable`1 series, Action`1 action)
   at Ninject.Planning.Planner.CreateNewPlan(Type type)
   at Ninject.Planning.Planner.GetPlan(Type type)
   at Ninject.Activation.Providers.StandardProvider.Create(IContext context)
   at Ninject.Activation.Context.Resolve()
   at Ninject.KernelBase.<>c__DisplayClass10.<Resolve>b__c(IBinding binding)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source)
   at Ninject.Planning.Targets.Target`1.GetValue(Type service, IContext parent)
   at Ninject.Planning.Targets.Target`1.ResolveWithin(IContext parent)
   at Ninject.Activation.Providers.StandardProvider.GetValue(IContext context, ITarget target)
   at Ninject.Activation.Providers.StandardProvider.<>c__DisplayClass4.<Create>b__2(ITarget target)
   at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at Ninject.Activation.Providers.StandardProvider.Create(IContext context)
   at Ninject.Activation.Context.Resolve()
   at Ninject.KernelBase.<>c__DisplayClass10.<Resolve>b__c(IBinding binding)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source)
   at Ninject.Planning.Targets.Target`1.GetValue(Type service, IContext parent)
   at Ninject.Planning.Targets.Target`1.ResolveWithin(IContext parent)
   at Ninject.Activation.Providers.StandardProvider.GetValue(IContext context, ITarget target)
   at Ninject.Activation.Providers.StandardProvider.<>c__DisplayClass4.<Create>b__2(ITarget target)
   at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at Ninject.Activation.Providers.StandardProvider.Create(IContext context)
   at Ninject.Activation.Context.Resolve()
   at Ninject.KernelBase.<>c__DisplayClass10.<Resolve>b__c(IBinding binding)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source)
   at Ninject.Extensions.Wcf.BaseNinjectServiceHostFactory.CreateServiceHost(Type serviceType, Uri[] baseAddresses)
   at System.ServiceModel.Activation.ServiceHostFactory.CreateServiceHost(String constructorString, Uri[] baseAddresses)
   at System.ServiceModel.ServiceHostingEnvironment.HostingManager.CreateService(String normalizedVirtualPath, EventTraceActivity eventTraceActivity)
   at System.ServiceModel.ServiceHostingEnvironment.HostingManager.ActivateService(ServiceActivationInfo serviceActivationInfo, EventTraceActivity eventTraceActivity)
   at System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath, EventTraceActivity eventTraceActivity)
   --- End of inner exception stack trace ---
   at System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath, EventTraceActivity eventTraceActivity)
   at System.ServiceModel.ServiceHostingEnvironment.EnsureServiceAvailableFast(String relativeVirtualPath, EventTraceActivity eventTraceActivity)
 Process Name: w3wp
 Process ID: 3248

还有一点，我们正在使用 .NET 4.5 和 Visual Studio 2012 RC 进行开发。

Answer 1

我刚刚设法解决了随机“System.ServiceModel.ServiceActivationException”的类似问题(抛出异常，然后在第二次命中时运行。)。在我的案例中出现异常的原因是服务器内存不足。要确认内存问题，您可以执行以下操作:

应用程序调用网络服务:

System.ServiceModel.ServiceActivationException: The requested service, 'XXX' could not be activated. See the server's diagnostic trace logs for more information.

Server stack trace: 
   at System.ServiceModel.Channels.HttpChannelUtilities.ValidateRequestReplyResponse(HttpWebRequest request, HttpWebResponse response, HttpChannelFactory`1 factory, WebException responseException, ChannelBinding channelBinding)
   at System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
   at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
   at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

WCF 跟踪日志:未记录任何内容。

在事件日志中托管 wcf 服务(顺便说一句，与调用应用程序相同)的服务器上，除了我发现的大量垃圾信息:

自定义事件详细信息:

WebHost failed to process a request.
 Sender Information: System.ServiceModel.ServiceHostingEnvironment+HostingManager/58366981
 Exception: System.ServiceModel.ServiceActivationException: The service 'xxx' cannot be activated due to an exception during compilation.  The exception message is: Memory gates checking failed because the free memory (xxx bytes) is less than 5% of total memory.  As a result, the service will not be available for incoming requests.  To resolve this, either reduce the load on the machine or adjust the value of minFreeMemoryPercentageToActivateService on the serviceHostingEnvironment config element.. ---> System.InsufficientMemoryException: Memory gates checking failed because the free memory (xxx bytes) is less than 5% of total memory.  As a result, the service will not be available for incoming requests.  To resolve this, either reduce the load on the machine or adjust the value of minFreeMemoryPercentageToActivateService on the serviceHostingEnvironment config element.

所以对我来说解决方案是: 1.添加更多内存 2.释放部分ram(临时解决方案) 3. 更新网络服务的网络配置:

<configuration>
  <system.serviceModel>
    <serviceHostingEnvironment ... minFreeMemoryPercentageToActivateService="0" />
  </system.serviceModel>
</configuration>