Re: [grpc-io] Simple Sample, bu "An existing connection was forcibly closed by the remote host"

2016-06-28 Thread Nicolas Vacelet 
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.
>
> --
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>

Re: [grpc-io] Simple Sample, bu "An existing connection was forcibly closed by the remote host"

2016-06-29 Thread 'Eric Anderson' via grpc.io 
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