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

The process of curating raw data

By this point, hopefully, it is easy to envision that the need for curating data is very real. Now, let's focus on the actual process to make this happen.

Figure 7.15 – Data curation process

Inspecting data

The process of data curation starts by inspecting sample data. Typically, this is a joint effort between the data engineers and the customer team members. You can start by visually inspecting data covering diverse data sources, although in many cases you may need to implement programming logic to discover data that is unstandardized, invalid, inconsistent, non-uniform, duplicate, or insecure.

Deliverable: A detailed report listing all the instances where data curation will be required, including a plan to fix each case. Within the report, feel free to include the pseudocode for the business logic that addresses the specific case, as follows:

IF raw_data.country IN ('USA', 'United States...