Core API - Transformations

Originally published at: http://www.itversity.com/topic/core-api-transformations/

  mapping – map, flatMap, filter, mapPartitions aggregate – reduceByKey, aggregateByKey, groupByKey joins – join, leftOuterJoin, rightOuterJoin, cogroup, cartesian sorting and ranking – sortByKey, groupByKey controlling RDD partitions – coalesce, repartition set operations – union, intersection