接着上篇部署。该篇是针对上篇的测试。

测试

• Spark-shell测试

  ./spark-shell
  ...
  scala> val days = List("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday")
  days: List[String] = List(Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday)
  scala> val daysRDD =sc.parallelize(days)
  daysRDD: org.apache.spark.rdd.RDD[String] = ParallelCollectionRDD[0] at parallelize at <console>:14
  scala>daysRDD.count()
  scala>res0:Long =7
  

• 脚本测试

  • 本地模式

    • ./bin/run-example org.apache.spark.examples.SparkPi 2 spark://localhost:7077
    • ./bin/run-example SparkPi 10 --master local[2]

  • standalone模式
    【注意】127.0.0.1 && *.jar的路径

    • ./spark-submit --class org.apache.spark.examples.SparkPi --master spark://127.0.0.1:7077 ../lib/spark-examples-1.4.0-hadoop2.6.0.jar 100

  • yarn测试（cluster模式和client模式）
    【注意】*.jar的路径

    • ./spark-submit --class org.apache.spark.examples.SparkPi --master yarn-cluster ../lib/spark-examples*.jar 10
http://localhost:8088/（localhost可以是服务器地址）
    • ./spark-submit --class org.apache.spark.examples.SparkPi --master yarn-client ../lib/spark-examples*.jar 10
    • 访问localhost:8088可以看到结果。
• 数据测试
  • shell脚本

  getNum(){
      c=1
      while [[ $c -le 5000000 ]]
      do
          echo $(($RANDOM/500))
          ((c++))
      done
  }
  for i in `seq 30`
  do
      getNum >> ${i}.txt &
      # getNum
  done
  wait
  echo "------------------DONE-----------------"
  cat [0-9]*.txt > num.txt
  

  • 创建hdfs文件目录（执行文件位于hadoop/bin/hdfs;hdfs根目录是hdfs://localhost:9000）
    执行命令：./bin/hdfs dfs -mkdir -p /user/hadoop/datatest
  • 向创建的hdfs文件中写入数据（脚本生成的数据）
    执行命令：./bin/hdfs dfs -put /root/num.txt /user/hadoop/datatest
  • scala测试代码：
    执行命令：spark/bin/Spark-shell

  scala> val file = sc.textFile("hdfs://localhost:9000/user/hadoop/datatest/num.txt")
  scala> val count = file.flatMap(line => line.split(" ")).map(word => (word, 1)).reduceByKey(_+_)
  scala> count.sortBy(_._2).map(x => x._1 + "\t" + x._2).saveAsTextFile("hdfs://localhost:9000/user/hadoop/datatest/numCount")
  

  执行hadoop相关操作命令：（hadoop/bin/）
  ./hadoop fs -cat hdfs://localhost:9000/user/hadoop/datatest/numCount/p*|sort -k2n
  测试结果如下：