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Spark - Resilient Distributed Datasets (RDDs) 23 pages

Accumulator
Action
Broadcast variables
Collect
(Creation|Construction|Initialization)
Count
Distinct
Filter Transformation
Group By Key
Join
Key-Value RDD
(Map|flatMap)
Partition
Pipe
Calling a Worker (Local|External) Process
(Reduce|Aggregate) function
Spark Context (sc, sparkContext)
Sort
(Random) Split
String
(Take|TakeOrdered)
(RDD) Transformation
Variable

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in RDD. Reduce aggregates a data set element using a function. Takeordered and take returns n elements ordered or not Collect returns all of the elements of the RDD as an array

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