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POSupport "Transfer-Encoding:chunked" from httpstaticfileserverhandler example
 

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  1. POSupport "Transfer-Encoding:chunked" from httpstaticfileserverhandler example
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    <p>I have a requirement to be able to simulate a http response with chunked encoding. Netty is the obvious choice to be able to simulate strong scalability under high load. However when a response header consists of the header </p> <p><code>Transfer-Encoding: chunked</code></p> <p>the requesting client recieves the response header but never any content.</p> <p>From the Netty example where it demonstrates responding to HTTPS, I changed it slightly to </p> <pre><code> if (ch.getPipeline().get(SslHandler.class) != null || response.getHeader("Transfer-Encoding").equals("chunked")) { writeFuture = ch.write(new ChunkedFile(raf, 0, fileLength, 8192)); } else { use FileRegion .... } if (!isKeepAlive(req)) { outboundFuture.addListener(ChannelFutureListener.CLOSE); } </code></pre> <p>I therefore expected the chunkedFile to be handled by ChunkedWriteHandler and for the response to be sent without issue but I may be overlooking something.</p> <p>The pipeline matches the handlers and order in the netty example</p> <pre><code> pipeline.addLast("decoder", new HttpRequestDecoder()); pipeline.addLast("aggregator", new HttpChunkAggregator(65536)); pipeline.addLast("encoder", new HttpResponseEncoder()); pipeline.addLast("chunkedWriter", new ChunkedWriteHandler()); pipeline.addLast("handler", new Handler()); </code></pre> <p>Netty Stack Trace: </p> <pre><code>java.io.IOException: An existing connection was forcibly closed by the remote host at sun.nio.ch.SocketDispatcher.write0(Native Method) at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:33) at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:72) at sun.nio.ch.IOUtil.write(IOUtil.java:28) at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:334) at org.jboss.netty.channel.socket.nio.SocketSendBufferPool$PooledSendBuffer.transferTo(SocketSendBufferPool.java:241) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.write0(AbstractNioWorker.java:476) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.writeFromUserCode(AbstractNioWorker.java:426) at org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.handleAcceptedSocket(NioServerSocketPipelineSink.java:127) at org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.eventSunk(NioServerSocketPipelineSink.java:66) at org.jboss.netty.handler.codec.oneone.OneToOneEncoder.handleDownstream(OneToOneEncoder.java:63) at org.jboss.netty.channel.Channels.write(Channels.java:733) at org.jboss.netty.handler.stream.ChunkedWriteHandler.flush(ChunkedWriteHandler.java:276) at org.jboss.netty.handler.stream.ChunkedWriteHandler.handleDownstream(ChunkedWriteHandler.java:120) at org.jboss.netty.channel.Channels.write(Channels.java:712) at org.jboss.netty.channel.Channels.write(Channels.java:679) at org.jboss.netty.channel.AbstractChannel.write(AbstractChannel.java:245) at nettyexample.Handler.messageReceived(Handler.java:93) at org.jboss.netty.handler.stream.ChunkedWriteHandler.handleUpstream(ChunkedWriteHandler.java:141) at org.jboss.netty.handler.codec.http.HttpChunkAggregator.messageReceived(HttpChunkAggregator.java:111) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296) at org.jboss.netty.handler.codec.replay.ReplayingDecoder.unfoldAndFireMessageReceived(ReplayingDecoder.java:600) at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:584) at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:445) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255) at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:94) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.processSelectedKeys(AbstractNioWorker.java:372) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:246) at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:38) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) java.nio.channels.ClosedChannelException at org.jboss.netty.handler.stream.ChunkedWriteHandler.discard(ChunkedWriteHandler.java:168) at org.jboss.netty.handler.stream.ChunkedWriteHandler.flush(ChunkedWriteHandler.java:287) at org.jboss.netty.handler.stream.ChunkedWriteHandler.handleDownstream(ChunkedWriteHandler.java:120) at org.jboss.netty.channel.Channels.write(Channels.java:712) at org.jboss.netty.channel.Channels.write(Channels.java:679) at org.jboss.netty.channel.AbstractChannel.write(AbstractChannel.java:245) at nettyexample.Handler.messageReceived(Handler.java:93) at org.jboss.netty.handler.stream.ChunkedWriteHandler.handleUpstream(ChunkedWriteHandler.java:141) at org.jboss.netty.handler.codec.http.HttpChunkAggregator.messageReceived(HttpChunkAggregator.java:111) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296) at org.jboss.netty.handler.codec.replay.ReplayingDecoder.unfoldAndFireMessageReceived(ReplayingDecoder.java:600) at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:584) at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:445) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255) at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:94) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.processSelectedKeys(AbstractNioWorker.java:372) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:246) at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:38) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) </code></pre>
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