March 2019
Beginner to intermediate
182 pages
4h 6m
English
Content preview from Hands-On Big Data Analytics with PySpark
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SparkContext
SparkContext is an object or concept within Spark. It is a big data analytical engine that allows you to programmatically harness the power of Spark.
The power of Spark can be seen when you have a large amount of data that doesn't fit into your local machine or your laptop, so you need two or more computers to process it. You also need to maintain the speed of processing this data while working on it. We not only want the data to be split among a few computers for computation; we also want the computation to be parallel. Lastly, you want this computation to look like one single computation.
Let's consider an example where we have a large contact database that has 50 million names, and we might want to extract the first name ...
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