0.parallelize
1.map
2.mapValues
3.flatMap
4.mapPartitions
5.mapPartitionsWithIndex
6.filter
7.reduce
8.reduceByKey
9.groupBy
10.groupByKey
11.partitionBy
12.foreach
13.foreachPartition
14.count
15.collect
16.saveAsTextFile
17.combineByKey
18.persist
19.cache
20.sample
21.union
22.join
23.cartesian
24.textFile
25.makeRDD
26.distinct