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WhiteSand
- Jul 28, 2019
- 5 min
Understanding SparkContext textFile & parallelize method
Main menu: Spark Scala Tutorial In this blog you will learn, How Spark reads text file or any other external dataset. Referencing a dataset (SparkContext's textfile), SparkContext parallelize method and spark dataset textFile method. As we read in previous post, Apache Spark has mainly three types of objects or you can say data structures (also called Spark APIs) - RDDs, dataframe and datasets. RDD was the primary API when Apache Spark was founded. RDD - Resilient Distributed
WhiteSand
- Jun 12, 2018
- 4 min
Loading JSON file using Spark (Scala)
Main menu: Spark Scala Tutorial In this Apache Spark Tutorial - We will be loading a simple JSON file. Now-a-days most of the time you will find files in either JSON format, XML or a flat file. JSON file format is very easy to understand and you will love it once you understand JSON file structure. JSON File Structure Before we ingest JSON file using spark, it's important to understand JSON data structure. Basically, JSON (JavaScript Object Notation) is a lightweight data-in
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