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Learning PySpark

Learning PySpark

By : Drabas, Lee
3.9 (194)
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Learning PySpark

Learning PySpark

3.9 (194)
By: Drabas, Lee

Overview of this book

Apache Spark is an open source framework for efficient cluster computing with a strong interface for data parallelism and fault tolerance. This book will show you 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 Spark 2.0 architecture and how to set up a Python environment for Spark. You will get familiar with the modules available in PySpark. You will learn how to abstract data with RDDs and DataFrames and understand the streaming capabilities of PySpark. Also, you will get a thorough overview of machine learning capabilities of PySpark using ML and MLlib, graph processing using GraphFrames, and polyglot persistence using Blaze. Finally, you will learn how to deploy your applications to the cloud using the spark-submit command. By the end of this book, you will have established a firm understanding of the Spark Python API and how it can be used to build data-intensive applications.
Table of Contents (13 chapters)
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12
Index

Deploying the app programmatically

Unlike the Jupyter notebooks, when you use the spark-submit command, you need to prepare the SparkSession yourself and configure it so your application runs properly.

In this section, we will learn how to create and configure the SparkSession as well as how to use modules external to Spark.

Note

If you have not created your free account with either Databricks or Microsoft (or any other provider of Spark) do not worry - we will be still using your local machine as this is easier to get us started. However, if you decide to take your application to the cloud it will literally only require changing the --master parameter when you submit the job.

Configuring your SparkSession

The main difference between using Jupyter and submitting jobs programmatically is the fact that you have to create your Spark context (and Hive, if you plan to use HiveQL), whereas when running Spark with Jupyter the contexts are automatically started for you.

In this section, we will develop...

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