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Why is transformation lazy operation in Apache Spark RDD? How is it useful?

Question Posted / sudershan singh


Why is transformation lazy operation in Apache Spark RDD? How is it useful?..

Answer / Rahul Bajpai

Transformations in Apache Spark are lazy because they only execute when an action (like collect(), count(), or save()) is triggered. This allows for efficient task scheduling, optimization, and caching of intermediate results to improve performance for large datasets.

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