You should look for a netty debuglog frame that's for DATA, not RST_STREAM. That should show you the corrupted message.
There are also some hooks into the core gRPC library that (while more complicated) will let you examine the message bytes. By using a custom Marshaller, you can peak at the bytes and then delegate the remaining message to the protobuf Marshaller. You can see how to wire up a Marshaller by looking in the generated code for the MethodDescriptor. On Sunday, September 16, 2018 at 2:38:26 PM UTC-7, Anthony Corbacho wrote: > > Hello, > I am new to Grpc and so far like it very much. > > I am using a bidirectional stream and from time to time I get an exception > like this one: > > io.grpc.StatusRuntimeException: CANCELLED: Failed to read message. at > io.grpc.Status.asRuntimeException(Status.java:526) at > io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:418) > > at > io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:41) > > at > io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:663) > > at > io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:41) > > at > io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:392) > > at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:443) > at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:63) at > io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:525) > > at > io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$600(ClientCallImpl.java:446) > > at > io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1MessagesAvailable.runInContext(ClientCallImpl.java:510) > > at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) at > io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123) at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) > > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) > > at java.lang.Thread.run(Thread.java:748) Caused by: > io.grpc.StatusRuntimeException: INTERNAL: Invalid protobuf byte sequence at > io.grpc.Status.asRuntimeException(Status.java:517) at > io.grpc.protobuf.lite.ProtoLiteUtils$2.parse(ProtoLiteUtils.java:168) at > io.grpc.protobuf.lite.ProtoLiteUtils$2.parse(ProtoLiteUtils.java:82) at > io.grpc.MethodDescriptor.parseResponse(MethodDescriptor.java:265) at > io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1MessagesAvailable.runInContext(ClientCallImpl.java:498) > > ... 5 more Caused by: com.google.protobuf.InvalidProtocolBufferException: > Protocol message contained an invalid tag (zero). at > com.google.protobuf.InvalidProtocolBufferException.invalidTag(InvalidProtocolBufferException.java:105) > > at > com.google.protobuf.CodedInputStream$ArrayDecoder.readTag(CodedInputStream.java:646) > > at > com.zepl.notebook.service.grpc.NotebookResponse.<init>(NotebookResponse.java:46) > > at > com.zepl.notebook.service.grpc.NotebookResponse.<init>(NotebookResponse.java:13) > > at > com.zepl.notebook.service.grpc.NotebookResponse$1.parsePartialFrom(NotebookResponse.java:2851) > > at > com.zepl.notebook.service.grpc.NotebookResponse$1.parsePartialFrom(NotebookResponse.java:2846) > > at com.google.protobuf.AbstractParser.parseFrom(AbstractParser.java:91) at > com.google.protobuf.AbstractParser.parseFrom(AbstractParser.java:49) at > io.grpc.protobuf.lite.ProtoLiteUtils$2.parseFrom(ProtoLiteUtils.java:173) > at io.grpc.protobuf.lite.ProtoLiteUtils$2.parse(ProtoLiteUtils.java:165) > ... 8 more > > I enabled netty debug logs, and I have this line: [id: 0xfc5978c0, L:/ > 100.119.42.167:39090 - R:--/--] OUTBOUND RST_STREAM: streamId=1539 > errorCode=8. > I dont really get what is wrong, I get this error once in a while and I am > stuck. > I am calling the observers from different threads in the server side, do I > need to synchronize the method that calls the observers? > > Thank you for your help and time. > -- 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 post to this group, send email to grpc-io@googlegroups.com. Visit this group at https://groups.google.com/group/grpc-io. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/1c40805b-e67a-40c7-9673-9d69746264f3%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
