akka demo

最近在使用akka,写了一个基于akka的分布式求累加和的例子,思路很简单,在本地机器上把求和的任务均匀分配给不同步的节点去计算,并且把计算结果返回到本地机器,然后在本地进行再次进行合并,得到最终结果.

本地Actor : Master

package com.ycimport akka.actor.{Actor, ActorLogging}import akka.util.Timeoutimport scala.collection.mutable.ArrayBufferimport scala.concurrent.{Await, Future}import scala.concurrent.duration._import akka.pattern.ask/**  * Created by yc   */class MasterActor  extends Actor with ActorLogging{  val worker1 = context.actorSelection("akka.tcp://Worker1@182.254.211.164:2553/user/worker1")  //val worker2 = context.actorSelection("akka.tcp://Worker2@10.175.37.91:2554/user/worker2") // val worker3 = context.actorSelection("akka.tcp://Worker3@10.175.37.91:2555/user/worker3")  //val worker4 = context.actorSelection("akka.tcp://Worker4@10.175.37.91:2556/user/worker4")  val futureResult = new ArrayBuffer[Future[BigInt]]()  val start = System.nanoTime()  implicit val timeout  = Timeout(100 seconds)  var res:BigInt = 0  override def receive={    case message:String=>{      futureResult += (worker1?"1,1000000000").mapTo[BigInt]      //futureResult += (worker2?"500000001,1000000000").mapTo[BigInt]     // futureResult += (worker3?"500000001,750000000").mapTo[BigInt]        //futureResult += (worker4?"750000001,1000000000").mapTo[BigInt]      //futureResult += (worker1?"500000001,1000000000").mapTo[BigInt]      futureResult.foreach(p=>res += Await.result(p,timeout.duration))      log.info("the result of 1 add to 1000000000 = "+res)      println("use time:"+Stopwatch.format(System.nanoTime() - start))    }  }}

本地actor启动类 LocalNodeApplication

package com.ycimport akka.actor.{ActorSystem, Props}import com.typesafe.config.ConfigFactory/**  * Created by yc   */object MasterAppilcation extends App{    val system = ActorSystem("MasterApp",ConfigFactory.load().getConfig("Master"))    val master = system.actorOf(Props[MasterActor],name = "master")    master ! "start"    //Thread.sleep(100000)    system.shutdown()}

application.conf

Master {  akka {    actor {      provider = "akka.remote.RemoteActorRefProvider"      }  }}

build.sbt

name := "Master"version := "1.0"scalaVersion := "2.11.8"libraryDependencies += "com.typesafe.akka" % "akka-remote_2.11" % "2.4.11"libraryDependencies += "com.typesafe.akka" % "akka-actor_2.11" % "2.4.11"libraryDependencies += "com.typesafe.akka" % "akka-kernel_2.11" % "2.4.11"

远程actor

package com.ycimport akka.actor.Actor/**  * Created by yc   */class Worker1Actor extends Actor{  override def receive = {    case message:String =>      val args =  message.split(",")      val start:BigInt =  BigInt(args(0))      val end:BigInt = BigInt(args(1))      var result:BigInt = 0      println("from:"+start+"to:"+end)      (start to end).foreach{        result += _      }      sender ! result    case _=>      println("your argments is wrong")  }}

驱动类

package com.ycimport akka.actor.{ActorSystem, Props}import akka.kernel.Bootableimport com.typesafe.config.ConfigFactory/**  * Created by yc   */class Worker1Application  extends  Bootable{  val system = ActorSystem("Worker1",ConfigFactory.load().getConfig("Worker1"))  override def startup() = {    system.actorOf(Props[Worker1Actor],name="worker1")  }  override def shutdown() = {    system.terminate()  }}

application.conf

Worker1 {  akka {    actor {      provider = "akka.remote.RemoteActorRefProvider"    }    remote {      enabled-transports = ["akka.remote.netty.tcp"]      netty.tcp {        hostname = "10.175.37.91"        port = 2553      }    }  }}

build.sbt

name := "Worker1"version := "1.0"scalaVersion := "2.11.8"libraryDependencies += "com.typesafe.akka" % "akka-remote_2.11" % "2.4.11"libraryDependencies += "com.typesafe.akka" % "akka-actor_2.11" % "2.4.11"libraryDependencies += "com.typesafe.akka" % "akka-kernel_2.11" % "2.4.11"   

示例源码:http://download.csdn.net/detail/tingibandequ/9672455
https://www.codeproject.com/Articles/1135973/Akka-remoting