my1639963 opened a new issue, #865: URL: https://github.com/apache/rocketmq-clients/issues/865
### Before Creating the Bug Report - [X] I found a bug, not just asking a question, which should be created in [GitHub Discussions](https://github.com/apache/rocketmq-clients/discussions). - [X] I have searched the [GitHub Issues](https://github.com/apache/rocketmq-clients/issues) and [GitHub Discussions](https://github.com/apache/rocketmq-clients/discussions) of this repository and believe that this is not a duplicate. - [X] I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ. ### Programming Language of the Client C# ### Runtime Platform Environment OS: Windows11 23H2.22631.4317 Microsoft Visual Studio Community 2022 (64 位) - Current 版本 17.10.3 .net 6 ### RocketMQ Version of the Client/Server Server Version 5.3.1 Client 5.1.0 ### Run or Compiler Version _No response_ ### Describe the Bug 代码片段如下： ``` c# //通过configuration 读取appsettingappsetting.json配置 var endpoint = confiuration["rocketmq:endpoint"]; topic = confiuration["rocketmq:topic"]; var clientConfig = new ClientConfig.Builder() .SetEndpoints(endpoint) .EnableSsl(false) .Build(); _producer = new Producer.Builder() .SetTopics(topic) // 默认主题 .SetClientConfig(clientConfig) .Build() .Result; ``` 调用 new Producer.Builder() 时报错 ``` sh An unhandled exception has occurred while executing the request. System.AggregateException: One or more errors occurred. (Status(StatusCode="Internal", Detail="Error starting gRPC call. HttpRequestException: Request headers must contain only ASCII characters.", DebugException="System.Net.Http.HttpRequestException: Request headers must contain only ASCII characters. at System.Net.Http.HPack.HPackEncoder.EncodeValueStringPart(String value, Span`1 destination) at System.Net.Http.HPack.HPackEncoder.EncodeStringLiteral(String value, Encoding valueEncoding, Span`1 destination, Int32& bytesWritten) at System.Net.Http.HPack.HPackEncoder.EncodeStringLiterals(ReadOnlySpan`1 values, String separator, Encoding valueEncoding, Span`1 destination, Int32& bytesWritten) at System.Net.Http.HPack.HPackEncoder.EncodeLiteralHeaderFieldWithoutIndexingNewName(String name, ReadOnlySpan`1 values, String separator, Encoding valueEncoding, Span`1 destination, Int32& bytesWritten) at System.Net.Http.Http2Connection.WriteLiteralHeader(String name, ReadOnlySpan`1 values, Encoding valueEncoding, ArrayBuffer& headerBuffer) at System.Net.Http.Http2Connection.WriteHeaderCollection(HttpRequestMessage request, HttpHeaders headers, ArrayBuffer& headerBuffer) at System.Net.Http.Http2Connection.WriteHeaders(HttpRequestMessage request, ArrayBuffer& headerBuffer) at System.Net.Http.Http2Connection.SendHeadersAsync(HttpRequestMessage request, CancellationToken cancellationToken, Boolean mustFlush) at System.Net.Http.Http2Connection.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken) at System.Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken) at System.Net.Http.DiagnosticsHandler.SendAsyncCore(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken) at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken) at System.Net.Http.HttpMessageInvoker.<SendAsync>g__SendAsyncWithTelemetry|6_0(HttpMessageHandler handler, HttpRequestMessage request, CancellationToken cancellationToken) at Grpc.Net.Client.Internal.GrpcCall`2.RunCall(HttpRequestMessage request, Nullable`1 timeout)")) ---> Grpc.Core.RpcException: Status(StatusCode="Internal", Detail="Error starting gRPC call. HttpRequestException: Request headers must contain only ASCII characters.", DebugException="System.Net.Http.HttpRequestException: Request headers must contain only ASCII characters. at System.Net.Http.HPack.HPackEncoder.EncodeValueStringPart(String value, Span`1 destination) at System.Net.Http.HPack.HPackEncoder.EncodeStringLiteral(String value, Encoding valueEncoding, Span`1 destination, Int32& bytesWritten) at System.Net.Http.HPack.HPackEncoder.EncodeStringLiterals(ReadOnlySpan`1 values, String separator, Encoding valueEncoding, Span`1 destination, Int32& bytesWritten) at System.Net.Http.HPack.HPackEncoder.EncodeLiteralHeaderFieldWithoutIndexingNewName(String name, ReadOnlySpan`1 values, String separator, Encoding valueEncoding, Span`1 destination, Int32& bytesWritten) at System.Net.Http.Http2Connection.WriteLiteralHeader(String name, ReadOnlySpan`1 values, Encoding valueEncoding, ArrayBuffer& headerBuffer) at System.Net.Http.Http2Connection.WriteHeaderCollection(HttpRequestMessage request, HttpHeaders headers, ArrayBuffer& headerBuffer) at System.Net.Http.Http2Connection.WriteHeaders(HttpRequestMessage request, ArrayBuffer& headerBuffer) at System.Net.Http.Http2Connection.SendHeadersAsync(HttpRequestMessage request, CancellationToken cancellationToken, Boolean mustFlush) at System.Net.Http.Http2Connection.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken) at System.Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken) at System.Net.Http.DiagnosticsHandler.SendAsyncCore(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken) at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken) at System.Net.Http.HttpMessageInvoker.<SendAsync>g__SendAsyncWithTelemetry|6_0(HttpMessageHandler handler, HttpRequestMessage request, CancellationToken cancellationToken) at Grpc.Net.Client.Internal.GrpcCall`2.RunCall(HttpRequestMessage request, Nullable`1 timeout)") at Grpc.Net.Client.Internal.GrpcCall`2.GetResponseHeadersCoreAsync() at Org.Apache.Rocketmq.ClientLoggerInterceptor.HandleResponse[TResponse](Task`1 t) at Org.Apache.Rocketmq.RpcClient.QueryRoute(Metadata metadata, QueryRouteRequest request, TimeSpan timeout) at Org.Apache.Rocketmq.ClientManager.QueryRoute(Endpoints endpoints, QueryRouteRequest request, TimeSpan timeout) at Org.Apache.Rocketmq.Client.FetchTopicRoute0(String topic) at Org.Apache.Rocketmq.Client.FetchTopicRoute(String topic) at Org.Apache.Rocketmq.Client.Start() at Org.Apache.Rocketmq.Producer.Start() at Org.Apache.Rocketmq.Producer.Builder.Build() --- End of inner exception stack trace --- ``` ### Steps to Reproduce 中文环境windows，每次调用必然触发 ### What Did You Expect to See? ... ### What Did You See Instead? ... ### Additional Context _No response_ -- This is an automated message from the Apache Git Service. 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