Question: What is the significance of the Spark Shuffle operation?Answer: The Spark Shuffle operation redistributes data across partitions during certain transformations, such as groupByKey or reduceByKey. It is a costly operation that involves data exchange and can impact performance.Example:
|
Is it helpful?
Yes
No
Most helpful rated by users:
- What is the purpose of the Spark SQL module?
- Explain the difference between narrow and wide transformations in Spark.