I encounter the same problem, and I don't know how to deal with it. On Sunday, July 23, 2017 at 3:08:14 AM UTC+8, [email protected] wrote: > > > I'm using the gRPC client in C# and using a long-lived duplex stream. > However, the TCP connection is closed at some time and therefore I would > like to use a keepalive in the client. The server (written in Go) is > already configured correctly for the keepalive and already tested with > clients written in Go. > > I use the following code to set a keepalive for 5 minutes and also to > enable tracing for viewing all incoming/outgoing bytes. > > Environment.SetEnvironmentVariable("GRPC_TRACE", > "tcp,channel,http,secure_endpoint"); > Environment.SetEnvironmentVariable("GRPC_VERBOSITY", "DEBUG"); > > var callCredentials = CallCredentials.FromInterceptor(Interceptor()); > > var roots = Encoding.UTF8.GetString(Resources.roots); > > Channel = new Channel(address, ChannelCredentials.Create(new > SslCredentials(roots), callCredentials), new[] > { > new ChannelOption("grpc.keepalive_time_ms", 5 * 60 * 1000), // 5 > minutes > }); > > await Channel.ConnectAsync(DateTime.UtcNow.AddSeconds(5)); > > However, in the log there are no bytes sent at 5 minutes and the > connection is closed as I can no longer send/receive messages via the same > stream after the stream has been idle for some time. > > How would I properly enable keepalive? >
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