In this tutorial, we provide a brief overview of Spark and its stack. This tutorial presents effective, time-saving techniques on how to leverage the power of Python and put it to use in the Spark ecosystem. You will start by getting a firm understanding of the Apache Spark architecture and how to set up a Python environment for Spark.
First, you'll learn about different techniques for collecting data, and distinguish between (and understand) techniques for processing data. Next, we provide an in-depth review of RDDs and contrast them with DataFrames. We provide examples of how to read data from files and from HDFS and how to specify schemas using reflection or programmatically (in the case of DataFrames). The concept of lazy execution is described and we outline various transformations and actions specific to RDDs and DataFrames.
Finally, we show you how to use SQL to interact with DataFrames. By the end of this tutorial, you will have learned how to process data using Spark DataFrames and mastered data collection techniques for distributed data processing.
Style and Approach
Filled with hands-on examples, this course will help you understand RDDs and how to work with them; you will learn about RDD actions and Spark DataFrame transformations. You will learn how to perform big data processing and use Spark DataFrames.
Table of Contents
- A BRIEF PRIMER ON PYSPARK
- RESILIENT DISTRIBUTED DATASETS
- RESILIENT DISTRIBUTED DATASETS AND ACTIONS
- DATAFRAMES AND TRANSFORMATIONS
- DATA PROCESSING WITH SPARK DATAFRAMES
What You Will Learn
- Learn about Apache Spark and the Spark 2.0 architecture.
- Understand schemas for RDD, lazy executions, and transformations.
- Explore the sorting and saving elements of RDD.
- Build and interact with Spark DataFrames using Spark SQL
- Create and explore various APIs to work with Spark DataFrames.
- Learn how to change the schema of a DataFrame programmatically.
- Explore how to aggregate, transform, and sort data with DataFrames.
The course can be purchased here: https://www.packtpub.com/big-data-and-business-intelligence/learning-pyspark-video
