假设有一个RDD的名称为words,包含9个元素,分别是:("Hadoop",1),("is",1),("good",1),("Spark",1),("is",1),("faSt",1),("Spark",1),("is",1),("better",1)。则语句words.groupByKey()的执行结果得到的新RDD中,所包含的元素是A ("good",1),( "Spark",2),( "is",3),( "fast",1), ( "better",1)B ("good",(1,1)),( "Spark",(1,1,1)),( "is",1),( "fast",1)C ("Hadoop",1),( "is",1),( "good",1),( "Spark",1),( "is",1) , ( "better",1)D ("Hadoop",1),( "is",(1,1,1)),( "good",1),( "Spark",(1,1)),("fast",1),( "better",1)
发布时间:2024-05-07 19:51:19