Hi Mahadevan, Thanks for using gRPC!
Based on the description, long living connections getting dropped frequently could be caused by TCP socket timeouts. You can refer to our document about how to set keepalive pings: https://github.com/grpc/grpc/blob/master/doc/keepalive.md How to set channel arguments: https://github.com/grpc/grpc/blob/master/examples/python/helloworld/greeter_client_with_options.py The list of available channel arguments: https://github.com/grpc/grpc/blob/master/include/grpc/impl/codegen/grpc_types.h#L138 I'm not sure what the maximum size of channels means. Channels share the underlying TCP sockets when possible. If you mean the maximum number of TCP sockets , gRPC doesn't have such limitations, please check your OS's network settings and the network devices. But as mentioned, I'm more suspect that this could be improved by using keepalive pings. Bests, Lidi Zheng On Fri, Feb 12, 2021 at 9:55 AM Mahadevan Krishnan <krish...@gmail.com> wrote: > Hi Lidi, > > Sorry to directly reach out to you through email. I saw one of your > presentations on youtube for gRPC about flow control. Hence I was thinking, > you would be able to help us here on what we could be doing wrong. We are > new to gRPC > > Regards, > Mahadevan > > ---------- Forwarded message --------- > From: Mahadevan Krishnan <Unknown> > Date: Wednesday, 10 February 2021 at 18:53:41 UTC-6 > Subject: Channel getting dropped > To: grpc.io <Unknown> > > > > We have been using Server Streaming Application written in Java through > gRPC maintaining long living connection where we stream data to our clients > based on the data collected from sensors. We have been seeing channel > getting dropped more frequently, connection getting dropped and we need to > make client re-establish connection even though there is no network blip. > We wanted to understand if there is maximum size for channel and if there > is a way to increase the channel size so that we do not lose the channel > and messages that were in the channel needs to be processed. Any help on > this is highly appreciated. > > -- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to grpc-io+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/CAMC1%3DjdBKNSwUr2f%2BCmsWrgrxUnVkzhOB4TRwq6wbskNCttGiw%40mail.gmail.com.
