Thanks Mark for responding.! On client side, I did not receive a notification that server/stream closed. On server, after Read()->false, context_->IsCancelled() is true. Also, I have seen this client running on windows and server on linux. When I checked client as well on Linux, it did not reproduce.
There is a default value for GRPC_ARG_KEEPALIVE_TIME_MS = 2 hours. So that means if my bidi stream/session is not explicitly terminated by any parties and assuming connection is active, server should not be closed by any reason. On Thursday, January 20, 2022 at 3:49:09 AM UTC+5:30 Mark D. Roth wrote: > There are a number of reasons why the stream might be closed. The server > might close the individual stream, or the underlying connection as a whole > might be dropped, which will implicitly close all streams active at the > moment when the connection is dropped. When stream->Read() returns false, > you should call stream->Finish() to get the RPC's status, and the status > message should tell you why the stream failed. > > If the problem is that the stream failed because the underlying connection > was closed because of idleness, then keepalive might be a good way to > address that. The keepalive knobs are documented at > https://github.com/grpc/grpc/blob/master/doc/keepalive.md. > GRPC_ARG_KEEPALIVE_PERMIT_WITHOUT_CALLS is probably not the knob you want, > because in this case, you do have an active call (note: "call" and "stream" > are the same thing in this context). I think you would just need to > set GRPC_ARG_KEEPALIVE_TIME_MS. > > I hope this info is helpful. > > On Wednesday, January 12, 2022 at 10:18:55 PM UTC-8 Roshan Chaudhari wrote: > >> I have bidirectional streaming rpc between server and client. If data is >> not exchanged over the stream, after certain time, on the server, it seems >> that stream is disconnected or stream-Read() returns false. >> >> Currently I am not using keepalive flags for the channel on server and >> client >> *. * >> There is a flag: >> GRPC_ARG_KEEPALIVE_PERMIT_WITHOUT_CALLS >> : This channel argument if set to 1 (0 : false; 1 : true), allows >> keepalive pings to be sent even if there are no calls in flight. >> what is meaning of "no calls in flight" ? >> >> Is this the option will help me out to solve my issue? >> >> >> - >> Roshan >> > -- 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/90cc24c8-ebc7-4ed8-a6bd-51fc005cd612n%40googlegroups.com.
