Re: [grpc-io] Simple Sample, bu "An existing connection was forcibly closed by the remote host"
I answer to Myself; To correctly close the client, and avoid an exception, one should use channel.shutdown.awaitTermination(5, SECONDS) 2016-06-28 15:52 GMT+02:00 : > Hi all, > > I am new in protobuff... and I already need some help. > > Here a simple sample I have successfuly created, a simple service which > getData from a server.. > I get an error (An existing connection was forcibly closed by the remote > host), just after the client received the final acknowledgement. > It means I can not use ma servezr more than once :) > > I am using, on windows7, > > Java 8 > > protoc:3.0.0-beta-2 > > protoc-gen-grpc-java:0.14.0 > > protobuf-maven-plugin 0.5.0 > > grpc-netty 0.14.0 > > grpc-protobuf 0.14.0 > > grpc-stub 0.14.0 > > > > > On Client Side, > > ManagedChannel channel = ManagedChannelBuilder.forAddress(host, port) > .usePlaintext(true) > .build();ViewServiceGrpc.ViewServiceBlockingClient blockingStub = > ViewServiceGrpc.newBlockingStub(channel); > blockingStub.getData(); > > channel.shutdown(); > > > > > On the server Side: > > > > server = ServerBuilder.forPort(port).addService(ViewServiceGrpc. > bindService(new ViewServiceGrpc.ViewService() { > public void getData(View request, StreamObserver responseObserver) { > switch (request.getDataCase()) { > > responseObserver.onNext(Ack.newBuilder().setAckMessage("ACK_OK").build > ()); > responseObserver.onCompleted(); > } > > })).build(); > server.start(); > > > Everything is OK, except this error on server side > > > juin 28, 2016 3:33:47 PM io.grpc.netty.NettyServerHandler > onConnectionError AVERTISSEMENT: Connection Error java.io.IOException: Une > connexion existante a dû être fermée par l’hôte distant at sun.nio.ch. > SocketDispatcher.read0(Native Method) at sun.nio.ch.SocketDispatcher.read( > SocketDispatcher.java:43) at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil > .java:223) at sun.nio.ch.IOUtil.read(IOUtil.java:192) at sun.nio.ch. > SocketChannelImpl.read(SocketChannelImpl.java:380) at io.netty.buffer. > PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:288) at > io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1054) at > io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel. > java:245) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe. > read(AbstractNioByteChannel.java:106) at io.netty.channel.nio.NioEventLoop > .processSelectedKey(NioEventLoop.java:527) at io.netty.channel.nio. > NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:484) at io. > netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:398) > at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:370) at io. > netty.util.concurrent.SingleThreadEventExecutor$5.run( > SingleThreadEventExecutor.java:742) at io.netty.util.concurrent. > DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory. > java:145) at java.lang.Thread.run(Thread.java:745) juin 28, 2016 3:33:47 > PM io.grpc.netty.NettyServerTransport notifyTerminated GRAVE: Transport > failed java.io.IOException: Une connexion existante a dû être fermée par l > ’hôte distant at sun.nio.ch.SocketDispatcher.read0(Native Method) at sun. > nio.ch.SocketDispatcher.read(SocketDispatcher.java:43) at sun.nio.ch. > IOUtil.readIntoNativeBuffer(IOUtil.java:223) at sun.nio.ch.IOUtil.read( > IOUtil.java:192) at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl. > java:380) at io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes( > PooledUnsafeDirectByteBuf.java:288) at io.netty.buffer.AbstractByteBuf. > writeBytes(AbstractByteBuf.java:1054) at io.netty.channel.socket.nio. > NioSocketChannel.doReadBytes(NioSocketChannel.java:245) at io.netty. > channel.nio.AbstractNioByteChannel$NioByteUnsafe.read( > AbstractNioByteChannel.java:106) at io.netty.channel.nio.NioEventLoop. > processSelectedKey(NioEventLoop.java:527) at io.netty.channel.nio. > NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:484) at io. > netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:398) > at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:370) at io. > netty.util.concurrent.SingleThreadEventExecutor$5.run( > SingleThreadEventExecutor.java:742) at io.netty.util.concurrent. > DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory. > java:145) at java.lang.Thread.run(Thread.java:745) > > > > Thanks for your help. > > -- > You received this message because you are subscribed to a topic in the > Google Groups "grpc.io" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/grpc-io/xcKtw8EZEtI/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > grpc-io+unsubscr...@googlegroups.com. > To post to this group, send email to grpc-io@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/grpc-io/43de1809-ea84-4c05-96cd-465dc430951b%40googlegroups.com >
Re: [grpc-io] Simple Sample, bu "An existing connection was forcibly closed by the remote host"
Sorry, I was going to reply with something like that yesterday and things came up. Glad you got it working. It means I can not use ma servezr more than once However, the server shouldn't die even without the awaitTermination(). Future clients should work fine. If not, that's a bug. On Tue, Jun 28, 2016 at 11:49 PM, Nicolas Vacelet wrote: > I answer to Myself; > > To correctly close the client, and avoid an exception, one should use > > channel.shutdown.awaitTermination(5, SECONDS) > > > 2016-06-28 15:52 GMT+02:00 : > >> Hi all, >> >> I am new in protobuff... and I already need some help. >> >> Here a simple sample I have successfuly created, a simple service which >> getData from a server.. >> I get an error (An existing connection was forcibly closed by the remote >> host), just after the client received the final acknowledgement. >> It means I can not use ma servezr more than once :) >> >> I am using, on windows7, >> >> Java 8 >> >> protoc:3.0.0-beta-2 >> >> protoc-gen-grpc-java:0.14.0 >> >> protobuf-maven-plugin 0.5.0 >> >> grpc-netty 0.14.0 >> >> grpc-protobuf 0.14.0 >> >> grpc-stub 0.14.0 >> >> >> >> >> On Client Side, >> >> ManagedChannel channel = ManagedChannelBuilder.forAddress(host, port) >> .usePlaintext(true) >> .build();ViewServiceGrpc.ViewServiceBlockingClient blockingStub = >> ViewServiceGrpc.newBlockingStub(channel); >> blockingStub.getData(); >> >> channel.shutdown(); >> >> >> >> >> On the server Side: >> >> >> >> server = ServerBuilder.forPort(port).addService(ViewServiceGrpc.bindS >> ervice(new ViewServiceGrpc.ViewService() { >> public void getData(View request, StreamObserver responseObserver) >> { >> switch (request.getDataCase()) { >> >> responseObserver.onNext(Ack.newBuilder().setAckMessage("ACK_OK").build >> ()); >> responseObserver.onCompleted(); >> } >> >> })).build(); >> server.start(); >> >> >> Everything is OK, except this error on server side >> >> >> juin 28, 2016 3:33:47 PM io.grpc.netty.NettyServerHandler >> onConnectionError AVERTISSEMENT: Connection Error java.io.IOException: >> Une connexion existante a dû être fermée par l’hôte distant at sun.nio.ch >> .SocketDispatcher.read0(Native Method) at sun.nio.ch.SocketDispatcher.re >> ad(SocketDispatcher.java:43) at sun.nio.ch.IOUtil.readIntoNativeBuffer( >> IOUtil.java:223) at sun.nio.ch.IOUtil.read(IOUtil.java:192) at sun.nio.ch >> .SocketChannelImpl.read(SocketChannelImpl.java:380) at io.netty.buffer. >> PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:288) >> at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1054) >> at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(Nio >> SocketChannel.java:245) at io.netty.channel.nio.AbstractN >> ioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:106) at io. >> netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:527) >> at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized( >> NioEventLoop.java:484) at io.netty.channel.nio.NioEventLoop. >> processSelectedKeys(NioEventLoop.java:398) at io.netty.channel.nio. >> NioEventLoop.run(NioEventLoop.java:370) at io.netty.util.concurrent.Singl >> eThreadEventExecutor$5.run(SingleThreadEventExecutor.java:742) at io. >> netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(D >> efaultThreadFactory.java:145) at java.lang.Thread.run(Thread.java:745) >> juin 28, 2016 3:33:47 PM io.grpc.netty.NettyServerTransport >> notifyTerminated GRAVE: Transport failed java.io.IOException: Une >> connexion existante a dû être fermée par l’hôte distant at sun.nio.ch. >> SocketDispatcher.read0(Native Method) at sun.nio.ch.SocketDispatcher.read >> (SocketDispatcher.java:43) at sun.nio.ch.IOUtil.readIntoNativeBuffer( >> IOUtil.java:223) at sun.nio.ch.IOUtil.read(IOUtil.java:192) at sun.nio.ch >> .SocketChannelImpl.read(SocketChannelImpl.java:380) at io.netty.buffer. >> PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:288) >> at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1054) >> at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(Nio >> SocketChannel.java:245) at io.netty.channel.nio.AbstractN >> ioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:106) at io. >> netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:527) >> at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized( >> NioEventLoop.java:484) at io.netty.channel.nio.NioEventLoop. >> processSelectedKeys(NioEventLoop.java:398) at io.netty.channel.nio. >> NioEventLoop.run(NioEventLoop.java:370) at io.netty.util.concurrent.Singl >> eThreadEventExecutor$5.run(SingleThreadEventExecutor.java:742) at io. >> netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(D >> efaultThreadFactory.java:145) at java.lang.Thread.run(Thread.java:745) >> >> >> >> Thanks for your help. >> >> -- >> You received this message because you are subscribed to a topic in the >> Google Groups "grpc.io" group. >> To unsubscribe from this