Shulou(Shulou.com)06/03 Report--

Win7 using Idea remote connection spark execution spark pi, my own experiment

Win7 address is 192.168.0.2, ubuntu is virtual machine, address is 192.168.0.3

Remote connection spark

The source code language is:

package main.scala.sogou/** * Created by danger on 2016/9/16. */import org.apache.spark.SparkContext._ import org.apache.spark. {SparkConf,SparkContext}object RemoteDebug { def main(args: Array[String]) { val conf = new SparkConf().setAppName("Spark Pi").setMaster("spark://192.168.0.3:7077") .setJars(List("D:\\scalasrc\\out\\artifacts\\scalasrc.jar")) val spark = new SparkContext(conf) val slices = if (args.length > 0) args(0).toInt else 2 val n = 100000 * slices val count = spark.parallelize(1 to n, slices).map { i => val x = Math.random * 2 - 1 val y = Math.random * 2 - 1 if (x * x + y * y < 1) 1 else 0 }.reduce(_ + _) println("Pi is roughly " + 4.0 * count / n) spark.stop() }} The place you need to modify is spark://192.168.0.3:7077 and the address of setJars: D: \\scalasrc\\out\\artifacts\\scalasrc.jar

Also, I don't have a Math package for Import spark.

So random uses Math. random

In the edit configuration interface of run, configure parameters

Seventy is mainly mainclass ha

main.scala.sogou.RemoteDebug

stand-alone run

The remote server made a lot of money, and after a pause, it appeared.

Process finished with exit code 0

Hehe, it worked

But what happened?

Online search, it's here.

16/09/16 09:40:57 INFO DAGScheduler: ResultStage 0 (reduce at RemoteDebug.scala:19) finished in 75.751 s

16/09/16 09:40:57 INFO TaskSchedulerImpl: Removed TaskSet 0.0, whose tasks have all completed, from pool

16/09/16 09:40:57 INFO DAGScheduler: Job 0 finished: reduce at RemoteDebug.scala:19, took 76.071948 s

Pi is roughly 3.1385

16/09/16 09:40:57 INFO SparkUI: Stopped Spark web UI at http://192.168.0.2:4040

16/09/16 09:40:57 INFO DAGScheduler: Stopping DAGScheduler

16/09/16 09:40:57 INFO SparkDeploySchedulerBackend: Shutting down all executors

16/09/16 09:40:57 INFO SparkDeploySchedulerBackend: Asking each executor to shut down

16/09/16 09:40:57 INFO MapOutputTrackerMasterEndpoint: MapOutputTrackerMasterEndpoint stopped!

16/09/16 09:40:57 INFO MemoryStore: MemoryStore cleared

It's so cool, it's a success, see blog.csdn.net/javastart/article/details/43372977

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