Spark源码解析（六）Spark RPC样例

1.RpcServer类：

object RpcServerTest {

  def main(args: Array[String]): Unit = {
    val conf = new SparkConf()
    val sparkSession = SparkSession
      .builder()
      .config(conf)
      .master("local[*]")
      .appName("test rpc").getOrCreate()
    val sparkContext: SparkContext = sparkSession.sparkContext
    val sparkEnv: SparkEnv = sparkContext.env
    /**
      * 注释： 系统
      */
    val rpcEnv = RpcEnv
      .create(HelloRpcSettings.getName(), HelloRpcSettings.getHostname(), HelloRpcSettings.getHostname(), HelloRpcSettings.getPort(), conf,
        sparkEnv.securityManager, 1, false)

    // TODO 注释：创建endpoint
    // RpcEndPoint
    val helloEndpoint: RpcEndpoint = new HelloEndPoint(rpcEnv)

    // 启动endpoint

    rpcEnv.setupEndpoint(HelloRpcSettings.getName(), helloEndpoint)

    rpcEnv.awaitTermination()

  }
}

2.RpcClient类

object RpcClientTest {

  def main(args: Array[Str