How to identify that, given operation is Transformation/Action in your program?

[DataFlair Team]

How to identify that, given operation is Transformation/Action in your program?

[DataFlair Team]

In order to identify the operation, one need to look at the return type of an operation.

• If operation returns a new RDD in that case an operation is ‘Transformation’
• If operation returns any other type than RDD in that case an operation is ‘Action’

Hence, Transformation constructs a new RDD from an existing one (previous one) while Action computes the result based on applied transformation and returns the result to either driver program or save it to the external storage.

Also refer to operations of RDD in Apache Spark and its Operations

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