title: Camel-netty4: how to wait response before send next request
body: <p>I have created route that accept request from multiple producers and send to a remote server by using netty4 with request-response. However, when camel is sending a request to remote server and waiting for response, next incoming request is received and want to send to remote server but got IOException as camel cannot receive response.</p>
  
  <p><strong>So, how to set Camel-Netty4 send request and wait for response before send next.</strong></p>
  
  <p>The route configuration:
  from("direct:DirectProcessOut?block=true")
  .to("netty4:tcp://192.168.1.2:8000?sync=true&amp;synchronous=true&amp;reuseChannel=true")</p>