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4)Spark(RDD编程2)_"val words = array(\"one\", \"two\", \"two\", \"th-CSDN博客

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文章浏览阅读202次。RDD编程2Key-Value类型:partitionBy在这里插入代码片groupByKeyreduceByKey(func, [numTasks])reduceByKey和groupByKey的区别aggregateByKeyfoldByKey案例combineByKey[C]sortByKey([ascending],[numTasks])mapValuesjoin(..._"val words = array(\"one\", \"two\", \"two\", \"three\", \"three\", \"three\") v"