无法从Eclipse将Spark与Hortonworks沙箱连接

Question

I am not able to connect my spark Code which is written on eclipse.
 Below is the code please guid me how I can do the same. 
Anything would be helpful  

import java.util.Arrays;

import org.apache.spark.SparkConf;
import org.apache.spark.api.java.JavaPairRDD;
import org.apache.spark.api.java.JavaRDD;
import org.apache.spark.api.java.JavaSparkContext;

 public class SparkTest {

public static void main（String [] args）{

  SparkConf conf = new SparkConf().setAppName("JD Word

Counter“）。setMaster（” local“）;

  JavaSparkContext sc = new JavaSparkContext(conf);
          //hdfs://localhost:8020/user/root/textfile/test.txt         JavaRDD<String> inputFile =

sc.textFile（“ hdfs：// localhost：8020 / user / root / textfile / test.txt”）;System.out.println（“ H​​ello start”）;System.out.println（inputFile.collect（））; JavaRDDwordsFromFile = inputFile.flatMap（content->Arrays.asList（content.split（“”））。iterator（））;System.out.println（“ hello end”）;

//JavaPairRDD countData = wordsFromFile.mapToPair(t -> new Tuple2(t, 1)).reduceByKey((x, y) -> (int) x + (int) y);

  //wordsFromFile.saveAsTextFile("hdfs://localhost:8020/user/root/fileTest/");

  System.out.println(" This java program is complete");   }

}


    Error
    I/O error constructing remote block reader.
    org.apache.hadoop.net.ConnectTimeoutException: 60000 millis timeout while waiting for 
    channel to be ready for connect. ch : java.nio.channels.SocketChannel[connection-pending 
     remote=/172.18.0.2:50010]
   at org.apache.hadoop.net.NetUtils.c

Answer 1

将localhost更改为hdp沙箱的ip地址，或将hdfs-site.xml文件放入类路径中。