Hi Eric,
Thanks for your idea. Here is how I have implemented it, tell me if this is
correct:
rpc HeartBeat(stream Void) returns Void;
C# Client do:
using (var heartBeat = client.HeartBeat(new CallOptions(null, null, channel.
ShutdownToken).WithWaitForReady(true)))
{
await heartBeat.ResponseAsync;
}
On Java server side:
@Override
public StreamObserver<Void> heartBeat(StreamObserver<Void>
responseObserver) {
return new StreamObserver<Void>() {
@Override
public void onNext(Void value) {
// Nothing to do
}
@Override
public void onError(Throwable t) {
shutdown();
}
@Override
public void onCompleted() {
shutdown();
}
};
}
Does it seems correct for you? Why would have to enable keepalive?
Thanks,
Julien
Le mercredi 12 juillet 2017 01:43:14 UTC+2, Eric Anderson a écrit :
>
> On Mon, Jul 10, 2017 at 6:03 AM, <[email protected] <javascript:>>
> wrote:
>
>> We are using grpc for C# <-> Java integration. The C# client application
>> will start the Java process containing the grpc server, and then create a
>> Chanel used for calling methods on Java server side.
>>
>> One problem we have is to properly terminate the Java server in case the
>> C# client crashed badly. In the current state, the Java process keeps
>> running in the background forever.
>>
>> Is there a way to be notified on server side when a client died?
>>
>
> I'd suggest the C# client creates a long-running RPC to the Java server,
> and the RPC will be seen as cancelled on the server when the connection is
> broken. I don't believe you need it in your case, but in similar cases
> you'd want to enable keepalive
> <https://grpc.io/grpc-java/javadoc/io/grpc/netty/NettyServerBuilder.html#keepAliveTime-long-java.util.concurrent.TimeUnit->
>
> on the server-side.
>
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