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Data Engineering with Python

Data Engineering with Python

By : Paul Crickard
2.6 (24)
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Data Engineering with Python

Data Engineering with Python

2.6 (24)
By: Paul Crickard

Overview of this book

Data engineering provides the foundation for data science and analytics, and forms an important part of all businesses. This book will help you to explore various tools and methods that are used for understanding the data engineering process using Python. The book will show you how to tackle challenges commonly faced in different aspects of data engineering. You’ll start with an introduction to the basics of data engineering, along with the technologies and frameworks required to build data pipelines to work with large datasets. You’ll learn how to transform and clean data and perform analytics to get the most out of your data. As you advance, you'll discover how to work with big data of varying complexity and production databases, and build data pipelines. Using real-world examples, you’ll build architectures on which you’ll learn how to deploy data pipelines. By the end of this Python book, you’ll have gained a clear understanding of data modeling techniques, and will be able to confidently build data engineering pipelines for tracking data, running quality checks, and making necessary changes in production.
Table of Contents (21 chapters)
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1
Section 1: Building Data Pipelines – Extract Transform, and Load
8
Section 2:Deploying Data Pipelines in Production
14
Section 3:Beyond Batch – Building Real-Time Data Pipelines

Building atomic data pipelines

The final feature of a production data pipeline that we will discuss in this chapter is atomicity. Atomicity means that if a single operation in a transaction fails, then all of the operations fail. If you are inserting 1,000 records into the database, as you did in Chapter 3, Reading and Writing Files, if one record fails, then all 1,000 fail.

In SQL databases, the database will roll back all the changes if record number 500 fails, and it will no longer attempt to continue. You are now free to retry the transaction. Failures can occur for many reasons, some of which are beyond your control. If the power or the network goes down while you are inserting records, do you want those records to be saved to the database? You would then need to determine which records in a transaction succeeded and which failed and then retry only the failed records. This would be much easier than retrying the entire transaction.

In the NiFi data pipelines you have built...

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Data Engineering with Python
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