Transformation operations in Spark return a new DataFrame/RDD without trigg

In a given spark program, how will you identify whether a given operation is Transformation or Action ?

Question Posted / Ajay Kumar Dewabansi

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Answer Posted / Ajay Kumar Dewabansi

Transformation operations in Spark return a new DataFrame/RDD without triggering physical execution. They can be chained together and only an action operation triggers the actual data processing. Examples of transformations include map, filter, and groupBy. An example of an action is count.

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