There is currently some sort of intermittent bug related to that API: https://github.com/grpc/grpc/issues/18929
On Wed, Aug 12, 2020 at 11:31 AM '[email protected]' via grpc.io < [email protected]> wrote: > If you're using the async completion queue based C++ API, then I believe > you can use the AsyncNotifyWhenDone > <https://github.com/grpc/grpc/blob/6dc8024bb44435579a79f2484687c91e7d34e55e/include/grpcpp/impl/codegen/server_context_impl.h#L281> > API > for this. See surrounding comments in the linked code for more details. > > On Wednesday, August 12, 2020 at 8:00:42 AM UTC-7 [email protected] wrote: > >> Health Checking Protocol: >> https://grpc.github.io/grpc/cpp/md_doc_health-checking.html >> >> On Wed, Aug 12, 2020 at 9:59 AM Mya Pitzeruse <[email protected]> wrote: >> >>> Let's start with the server case because it's a bit easier. gRPC >>> provides some built in healthchecking capabilities. Clients watch server >>> health. When a server goes unhealthy, clients remove them from the pool. >>> >>> gRPC doesn't necessarily surface connection primitives to your server >>> side so it's probably not easy to get at the same information for clients. >>> On the other hand, you could use something like a long lived bidi-streaming >>> API to "simulate" a connection with a backend. You'll need to handle >>> network disconnects, but you could use that approach to do some cleanup. >>> While it's not C++, here's a go example where a server side streaming API >>> cleans >>> up a subscription >>> <https://github.com/mjpitz/paxos/blob/main/internal/server/acceptor.go#L106-L110> >>> when the client is disconnected. >>> >>> >>> On Wed, Aug 12, 2020 at 5:57 AM Sachin Bharadwaj S < >>> [email protected]> wrote: >>> >>>> I have implemented a gRPC server application and multiple clients can >>>> connect to it and call RPCs. >>>> >>>> In the cases of client disconnection or client restarts, I would want >>>> to know which client got disconnected so that I can do some cleanup >>>> corresponding to that client. >>>> >>>> Similarly, if the server goes down, how can the client get notified? >>>> >>>> Does gRPC c++ stack provides a notification/callback to the >>>> application? If not, what is the best way to handle the connection >>>> termination on either side? >>>> >>>> -- >>>> 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 [email protected]. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/grpc-io/ab98d62c-231b-4e5b-bc0e-6519a9d0320ao%40googlegroups.com >>>> <https://groups.google.com/d/msgid/grpc-io/ab98d62c-231b-4e5b-bc0e-6519a9d0320ao%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> >>> >>> -- >>> >>> Mya Pitzeruse >>> >>> Principal Software Engineer - Service Infrastructure >>> >>> Gender Pronouns: She, Her, Hers >>> >>> [email protected] >>> >>> >>> Indeed - We help people get jobs. >>> >>> Indeed.com <http://www.indeed.com/> >>> >>> Facebook <http://www.facebook.com/indeed> | Twitter >>> <http://www.twitter.com/indeed> | Instagram >>> <http://www.instagram.com/indeedworks> >>> >> >> >> -- >> >> Mya Pitzeruse >> >> Principal Software Engineer - Service Infrastructure >> >> Gender Pronouns: She, Her, Hers >> >> [email protected] >> >> >> Indeed - We help people get jobs. >> >> Indeed.com <http://www.indeed.com/> >> >> Facebook <http://www.facebook.com/indeed> | Twitter >> <http://www.twitter.com/indeed> | Instagram >> <http://www.instagram.com/indeedworks> >> > -- > 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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/grpc-io/3141465f-6956-47d3-8a62-dc8ed81b92aen%40googlegroups.com > <https://groups.google.com/d/msgid/grpc-io/3141465f-6956-47d3-8a62-dc8ed81b92aen%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/CACV55uw8wkXO5Zbvx8-%3DnphQAbYr8Uh180xFC%2B89T1akRRx1-g%40mail.gmail.com.
