无法启动服务结构服务

Question

在按照 Azure Service Fabric 编程中有关创建计算器服务的 WcfCommunicationClient 的教程进行操作时，我偶然发现了一个我找不到答案的问题。

代码与书中大致相同，服务 (WCF) 是这样创建的：

    protected override IEnumerable<ServiceInstanceListener> CreateServiceInstanceListeners()
{
  return new[]
  {
    new ServiceInstanceListener(initParams => new WcfCommunicationListener<ICalculatorService>(initParams, this, WcfUtility.CreateTcpListenerBinding(), "ServiceEndpoint"))
  };
}

第一次调用该服务时，调用永远挂起，Service Fabric Explorer 给出以下错误 + 堆栈跟踪：

Unhealthy event: SourceId='System.RA', Property='ReplicaOpenStatus', HealthState='Warning', ConsiderWarningAsError=false. Replica had multiple failures during open. Error =System.InvalidOperationException (-2146233079) Poging om contracttype voor ICalculatorService te verkrijgen, maar dat type is geen ServiceContract en neemt ook geen ServiceContract over. bij System.ServiceModel.Description.ServiceReflector.GetContractTypeAndAttribute(Type interfaceType, ServiceContractAttribute& contractAttribute) bij System.ServiceModel.Description.TypeLoader.LoadContractDescriptionHelper(Type contractType, Type serviceType, Object serviceImplementation) bij System.ServiceModel.Description.ContractDescription.GetContract(Type contractType) bij Microsoft.ServiceFabric.Services.Communication.Wcf.Runtime.WcfCommunicationListener1.CreateServiceEndpoint(Type contractType, Binding binding, EndpointAddress address) bij Microsoft.ServiceFabric.Services.Communication.Wcf.Runtime.WcfCommunicationListener1..ctor(ServiceContext serviceContext, TServiceContract wcfServiceObject, Binding listenerBinding, EndpointAddress address, String endpointResourceName) bij Microsoft.ServiceFabric.Services.Communication.Wcf.Runtime.WcfCommunicationListener`1..ctor(ServiceContext serviceContext, TServiceContract wcfServiceObject, Binding listenerBinding, String endpointResourceName) bij CalculatorService.CalculatorService.b__3_0(StatelessServiceContext initParams) in C:\Users\servel\documents\visual studio 2015\Projects\CalculatorApplication\CalculatorService\CalculatorService.cs:regel 45 bij Microsoft.ServiceFabric.Services.Runtime.StatelessServiceInstanceAdapter.d__10.MoveNext() bij System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) bij System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) bij Microsoft.ServiceFabric.Services.Runtime.StatelessServiceInstanceAdapter.d__0.MoveNext()

显然服务无法启动。那么如何解决这个问题？

Answer 1

确保您的服务实现了具有 WCF ServiceContract 和 OperationContract 属性的接口。像这个例子 here.

无法启动服务结构服务

cannot start up service fabric service

wcf

web-services

azure-service-fabric