在 mscorlib.dll 中发生 System.ExecutionEngineException'

Posted 2023-03-27

【中文标题】在 mscorlib.dll 中发生 System.ExecutionEngineException\'

【英文标题】：System.ExecutionEngineException' occurred in mscorlib.dll在 mscorlib.dll 中发生 System.ExecutionEngineException'

【发布时间】：2021-09-04 15:18:55

【问题描述】：

我正在尝试使用 C# 和服务结构在 .NET Framework 上运行一个简单的 Client Servier Communicaton 应用程序。对于服务间通信，我正在尝试使用 gRPC，并且我已将客户端和服务器作为集群上的单独服务.我正在使用可靠的服务 API 来覆盖功能并建立服务间通信。但是，当我运行代码时，出现此错误：-

Exception thrown: 'Grpc.Core.RpcException' in mscorlib.dll
Managed Debugging Assistant 'FatalExecutionEngineError' has detected a problem in
 'C:\Users\Administrator\source\repos\TestGRPC\ClientService\bin\x64\Debug\ClientService.exe'.

Additional Information: The runtime has encountered a fatal error. The address of the error was at 0xeed5af27, on thread 0x578. The error code is 0x80131623.
This error may be a bug in the CLR or in the unsafe or non-verifiable portions of user code.
Common sources of this bug include user marshaling errors for COM-interop or PInvoke, which may corrupt the stack.
An unhandled exception of type 'System.ExecutionEngineException' occurred in mscorlib.dll

我找出了导致此错误的原因：-

static Random mRand = new Random();
        protected override async Task RunAsync(CancellationToken cancellationToken)
        
            long iterations = 0;
            ServicePartitionResolver partitionResolver = new ServicePartitionResolver("localhost:19000");
            var partition = partitionResolver.ResolveAsync(new Uri("fabric:/TestGRPC/gRPCServer"),
                ServicePartitionKey.Singleton, new System.Threading.CancellationToken()).Result;
            var endpoint = partition.Endpoints.ElementAt(mRand.Next(0, partition.Endpoints.Count));

            var address = endpoint.Address.Substring(endpoint.Address.IndexOf("\"\":\"") + 4);
            address = address.Substring(0, address.IndexOf("\""));

            Channel channel = new Channel(address, ChannelCredentials.Insecure);
            var client = new AccountService.AccountServiceClient(channel);
            while (true)
            
                cancellationToken.ThrowIfCancellationRequested();
                EmployeeName empName = client.GetEmployeeName(new EmployeeNameRequest  EmpId = "1" );
                if (empName == null || string.IsNullOrWhiteSpace(empName.FirstName) || string.IsNullOrWhiteSpace(empName.LastName))
                
                    ServiceEventSource.Current.ServiceMessage(this.Context, "Emplyee Not found");
                    Console.WriteLine("Employee not found.");
                
                else
                
                    ServiceEventSource.Current.ServiceMessage(this.Context, "Emplyee Name: 0 1", empName.FirstName, empName.LastName);
                    Console.WriteLine($"The employee name is empName.FirstName empName.LastName.");
                
                ServiceEventSource.Current.ServiceMessage(this.Context, "Working-0", ++iterations);

                await Task.Delay(TimeSpan.FromSeconds(1), cancellationToken);
            
        

是线

EmployeeName empName = client.GetEmployeeName(new EmployeeNameRequest  EmpId = "1" );

我怀疑域名无法正确解析，或者我不知道如何生成正确的域名地址。警告消息中也指出了这一点。服务器似乎在集群上运行良好。 集群上显示的警告消息和堆栈跟踪是：-

'RunAsync' reported Warning for property 'RunAsyncUnhandledException'.
Grpc.Core.RpcException: Status(StatusCode="Unavailable", Detail="DNS resolution failed for service: MININT-H7Q1KHO:50001", DebugException="Grpc.Core.Internal.CoreErrorDetailException: "created":"@1624221009.546000000","description":"Resolver transient failure","file":"..\..\..\src\core\ext\filters\client_channel\client_channel.cc","file_line":1361,"referenced_errors":["created":"@1624221009.546000000","description":"DNS resolution failed for service: MININT-H7Q1KHO:50001","file":"..\..\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\dns_resolver_ares.cc","file_line":362,"grpc_status":14,"referenced_errors":["created":"@1624221009.545000000","description":"C-ares status is not ARES_SUCCESS qtype=A name=MININT-H7Q1KHO is_balancer=0: Domain name not found","file":"..\..\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.cc","file_line":724,"referenced_errors":["created":"@1624221009.545000000","description":"C-ares status is not ARES_SUCCESS qtype=AAAA name=MININT-H7Q1KHO is_balancer=0: Domain name not found","file":"..\..\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.cc","file_line":724]]]")
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Grpc.Core.Internal.AsyncCall`2.UnaryCall(TRequest msg) in /var/local/git/grpc/src/csharp/Grpc.Core/Internal/AsyncCall.cs:line 78
   at Grpc.Core.DefaultCallInvoker.BlockingUnaryCall[TRequest,TResponse](Method`2 method, String host, CallOptions options, TRequest request) in /var/local/git/grpc/src/csharp/Grpc.Core/DefaultCallInvoker.cs:line 46
   at Grpc.Core.Interceptors.InterceptingCallInvoker.<BlockingUnaryCall>b__3_0[TRequest,TResponse](TRequest req, ClientInterceptorContext`2 ctx) in /var/local/git/grpc/src/csharp/Grpc.Core.Api/Interceptors/InterceptingCallInvoker.cs:line 51
   at Grpc.Core.ClientBase.ClientBaseConfiguration.ClientBaseConfigurationInterceptor.BlockingUnaryCall[TRequest,TResponse](TRequest request, ClientInterceptorContext`2 context, BlockingUnaryCallContinuation`2 continuation) in /var/local/git/grpc/src/csharp/Grpc.Core.Api/ClientBase.cs:line 174
   at Grpc.Core.Interceptors.InterceptingCallInvoker.BlockingUnaryCall[TRequest,TResponse](Method`2 method, String host, CallOptions options, TRequest request) in /var/local/git/grpc/src/csharp/Grpc.Core.Api/Interceptors/InterceptingCallInvoker.cs:line 48
   at AccountService.AccountServiceClient.GetEmployeeName(EmployeeNameRequest request, CallOptions options) in C:\Users\Administrator\source\repos\TestGRPC\ClientService\AccountGrpc.cs:line 100
   at AccountService.AccountServiceClient.GetEmployeeName(EmployeeNameRequest request, Metadata headers, Nullable`1 deadline, CancellationToken cancellationToken) in C:\Users\Administrator\source\repos\TestGRPC\ClientService\AccountGrpc.cs:line 96
   at ClientService.ClientService.<RunAsync>d__3.MoveNext() in C:\Users\Administrator\source\repos\TestGRPC\ClientService\ClientService.cs:line 56
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.ServiceFabric.Services.Runtime.StatelessServiceInstanceAdapter.<ExecuteRunAsync>d__18.MoveNext()

我已经被困在这个问题上很长时间了。我对 SF 有点陌生，不知道如何解决这个问题。任何帮助将不胜感激。

【问题讨论】：

异常为DNS resolution failed for service: MININT-H7Q1KHO:50001，因此，您可能需要在网络侧检查。

感谢您的信息，但服务器实例运行正常。您是否希望我检查任何具体的事情，因为我可以看到服务在给定的地址启动并运行？ @aybe

如上所述，显然问题是 gRPC 无法寻址。您可以尝试的事情：1. 使用“grpcurl”github.com/fullstorydev/grpcurl 命令行客户端来测试服务是否可以手动访问 2. 尝试设置 GRPC_DNS_RESOLVER=native 以使用不同的解析器（请参阅github.com/grpc/grpc/blob/master/doc/environment_variables.md）

【参考方案1】：

我发现 gRPC 库本身存在一些问题。最新版本的库在服务结构群集上的 DNS 解析期间显示异常行为。但是，这个问题主要只发生在 Windows 上。

一种解决方法是在代码早期的某处设置环境变量 "GRPC_DNS_RESOLVER=native"。但是，这只是一个临时修复，不建议用于生产代码。

可以在此处找到有关相同的讨论线程：https://github.com/grpc/grpc/issues/18411