第36课：Kafka源码解读SocketServer下的Acceptor、Processor、Handler
1 socketServer下的NIO
2 Acceptor、Processor、Handler
/**
* An NIO socket server. The threading model is
* 1 Acceptor thread that handles new connections
* Acceptor has N Processor threads that each have their own selector and read requests from sockets
* M Handler threads that handle requests and produce responses back to the processor threads for writing.
*/
class SocketServer(val config: KafkaConfig, val metrics: Metrics, val time: Time) extends Logging
