在發送post請求到 negotiate時，ocelot里提示

requestId: 0HM4FAJCPR76R:00000001, previousRequestId: no previous request id, message: Error Code: UnableToCompleteRequestError Message: Error making http request, exception: System.Net.Http.HttpRequestException: Resource temporarily unavailable ---> System.Net.Sockets.SocketException: Resource temporarily unavailable

at System.Net.Http.ConnectHelper.ConnectAsync(String host, Int32 port, CancellationToken cancellationToken)

--- End of inner exception stack trace ---

at System.Net.Http.ConnectHelper.ConnectAsync(String host, Int32 port, CancellationToken cancellationToken)

at System.Threading.Tasks.ValueTask1.get_Result() at System.Net.Http.HttpConnectionPool.CreateConnectionAsync(HttpRequestMessage request, CancellationToken cancellationToken) at System.Threading.Tasks.ValueTask1.get_Result()

at System.Net.Http.HttpConnectionPool.WaitForCreatedConnectionAsync(ValueTask1 creationTask) at System.Threading.Tasks.ValueTask1.get_Result()

at System.Net.Http.HttpConnectionPool.SendWithRetryAsync(HttpRequestMessage request, Boolean doRequestAuth, CancellationToken cancellationToken)

at System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task`1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts)

at Ocelot.Requester.HttpClientHttpRequester.GetResponse(DownstreamContext context) errors found in ResponderMiddleware. Setting error response for request path:/kf/negotiate, request method: POST

整個項目的流程是這樣的：

請求->nginx->ocelot->api+signalr

網上g了，stackoverflow也翻了，各種試了，看看有沒有大神遇到過同樣的問題

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