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What do you know about transformations in spark?

Question Posted / atul goel


What do you know about transformations in spark?..

Answer / Ashutosh Verma

"In Apache Spark, a transformation is an operation that takes an RDD and converts it into another RDD. Transformations are lazy - they do not actually execute the RDD until an action (like count(), collect(), or saveAsTextFile()) is called. Some common transformations include map(), filter(), flatMap(), reduceByKey(), and join().".

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