c# - WCF Service returning "requested service '...' could not be activated" the first time it's accessed from an MVC site

Question

We have a WCF service (with no security) that is being accessed by an MVC3 website.

On the developer machines we have no problems with it but when our TeamCity setup builds the central version and deploys it under IIS7 the first time we load the MVC3 site and it accesses the WCF service - the service call returns the message:

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.**

If we immediately hit the same site again, everything works fine.

The server stack track when it throws the error is:

Server stack trace:

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

Does anyone have any ideas on what could be causing the problem or where to start looking?

UPDATE: I forgot to mention the first that if we then don't access the site for a while and then go back, it gives the same error - then works again the second time.

UPDATE2: This is the event log entry text:

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

Just another point that we're developing using .NET 4.5 and Visual Studio 2012 RC.

score 33 · Accepted Answer

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。）。在我的情况下，异常的原因是服务器上的内存不足。要确认内存问题，您可以执行以下操作：

应用程序调用 Web 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：没有记录。

在事件日志中托管 wcf 服务（与调用应用程序 btw 相同）的服务器上，除了我发现的大量废话信息：

自定义活动详情：

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.

所以我的解决方案是： 1. 添加更多内存 2. 释放一些内存（临时解决方案） 3. 更新 Web 服务的 Web 配置：

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

score 18 · Accepted Answer

我也有这个问题，只是简单地说

<serviceHostingEnvironment  minFreeMemoryPercentageToActivateService="1">

在下面

<system.serviceModel>

一切正常。

score 2 · Accepted Answer

我也有这个问题，我做的是：

转到服务所在的文件系统中的目录
您将有 2 个服务文件
- 你的服务.svc
- yourService.svc.cs

打开文件 yourService.svc 并确保您的服务已配置，后面的代码如下所示：

<%@ ServiceHost Language="C#" Debug="true" Service="YourNamespace.yourService.svc" CodeBehind="yourService.svc.cs" %>

我以这种方式解决了我的问题。我希望它有帮助！

score 2 · Accepted Answer

我遇到了同样的“无法加载类型'System.Runtime.CompilerServices.AsyncStateMachineAttribute'”，我发现这是因为我使用 VS 2012 RTM 构建了我的应用程序，但随后尝试将它部署在只有4.5 测试版。AsyncStateMachineAttribute 是 Beta 之后添加的新类型。

score 1 · Accepted Answer

如果在安装 Windows Communication Foundation (WCF) 后安装 IIS，则会出现此错误。要修复它，只需运行以下命令：

"%WINDIR%\Microsoft.Net\Framework\v3.0\Windows Communication Foundation\ServiceModelReg.exe" -r

来源：IIS 托管服务失败

score 0 · Accepted Answer

0

.svc 扩展名是否在 IIS 下注册？

有关详细信息，请参阅MSDN 。

于 2012-07-05T11:43:25.870 回答

score 0 · Accepted Answer

对我来说，原来是 IIS 中的身份验证设置配置不正确。因此，身份验证失败阻止了初始请求，从而阻止了服务激活。

score 0 · Accepted Answer

我今天遇到了同样的问题，而不是 RAM 是磁盘空间的问题。释放空间后，我不得不重新启动应用程序池，问题就解决了。

score 0 · Accepted Answer

0

检查您托管服务的服务器的内存是否未满。

于 2015-08-11T11:52:43.160 回答

score -1 · Accepted Answer

每次我遇到同样的问题，我都会重新启动我的电脑，它运行良好。它释放内存

c# - WCF Service returning "requested service '...' could not be activated" the first time it's accessed from an MVC site

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