spark篇之kv结构算子_spark kv-CSDN博客

网站介绍:文章浏览阅读186次。spark中的算子调用:1.aggregateByKey算子def main(args : Array[String]):Unit={ val conf: SparkConf = new SparkConf().setMaster("local").setAppName("aggregateByKey") val sc: SparkContext = new SparkContext(conf) val rdd: RDD[(String, Int)] = sc.makeRDD(List(("_spark kv