LOG.info("Using Netty without authentication.");
/*end[HADOOP_NON_SECURE]*/
ChannelPipeline pipeline = pipeline();
pipeline.addLast("clientByteCounter", byteCounter);
pipeline.addLast("responseFrameDecoder",
new FixedLengthFrameDecoder(RequestServerHandler.RESPONSE_BYTES));
pipeline.addLast("requestEncoder", new RequestEncoder(conf));
pipeline.addLast("responseClientHandler",
new ResponseClientHandler(clientRequestIdRequestInfoMap, conf));
if (executionHandler != null) {
pipeline.addAfter(handlerBeforeExecutionHandler,