Book Image

Data Engineering with Apache Spark, Delta Lake, and Lakehouse

By : Manoj Kukreja
5 (2)
Book Image

Data Engineering with Apache Spark, Delta Lake, and Lakehouse

5 (2)
By: Manoj Kukreja

Overview of this book

In the world of ever-changing data and schemas, it is important to build data pipelines that can auto-adjust to changes. This book will help you build scalable data platforms that managers, data scientists, and data analysts can rely on. Starting with an introduction to data engineering, along with its key concepts and architectures, this book will show you how to use Microsoft Azure Cloud services effectively for data engineering. You'll cover data lake design patterns and the different stages through which the data needs to flow in a typical data lake. Once you've explored the main features of Delta Lake to build data lakes with fast performance and governance in mind, you'll advance to implementing the lambda architecture using Delta Lake. Packed with practical examples and code snippets, this book takes you through real-world examples based on production scenarios faced by the author in his 10 years of experience working with big data. Finally, you'll cover data lake deployment strategies that play an important role in provisioning the cloud resources and deploying the data pipelines in a repeatable and continuous way. By the end of this data engineering book, you'll know how to effectively deal with ever-changing data and create scalable data pipelines to streamline data science, ML, and artificial intelligence (AI) tasks.
Table of Contents (17 chapters)
1
Section 1: Modern Data Engineering and Tools
5
Section 2: Data Pipelines and Stages of Data Engineering
11
Section 3: Data Engineering Challenges and Effective Deployment Strategies

Understanding the bronze layer

Inside a lakehouse, the bronze layer stores raw data exactly in the same shape, form, and format as it was collected from the data sources. The following is a list of some of the features of the data within the bronze layer:

  • Unclean and non-standardized: This is deemed unsuitable for consumption by analytical workloads.
  • Support for multiple formats and types: Data in the bronze layer might be structured, semi-structured, or unstructured. It can also be a combination of text and binary types.
  • Immutable: By definition, data in the bronze layer should not be editable. If data changes over time, it is stored as duplicate copies.
  • Stored forever: Data in the bronze layer is never deleted. This is less of a concern due to the low cost of storage. However, to save costs, some portions of data might be archived.

Having data in the native format offers several advantages, as follows:

  • Replayed: Often, analysts and data scientists...