Book Image

Redis Stack for Application Modernization

By : Luigi Fugaro, Mirko Ortensi
1 (1)
Book Image

Redis Stack for Application Modernization

1 (1)
By: Luigi Fugaro, Mirko Ortensi

Overview of this book

In modern applications, efficiency in both operational and analytical aspects is paramount, demanding predictable performance across varied workloads. This book introduces you to Redis Stack, an extension of Redis and guides you through its broad data modeling capabilities. With practical examples of real-time queries and searches, you’ll explore Redis Stack’s new approach to providing a rich data modeling experience all within the same database server. You’ll learn how to model and search your data in the JSON and hash data types and work with features such as vector similarity search, which adds semantic search capabilities to your applications to search for similar texts, images, or audio files. The book also shows you how to use the probabilistic Bloom filters to efficiently resolve recurrent big data problems. As you uncover the strengths of Redis Stack as a data platform, you’ll explore use cases for managing database events and leveraging introduce stream processing features. Finally, you’ll see how Redis Stack seamlessly integrates into microservices architectures, completing the picture. By the end of this book, you’ll be equipped with best practices for administering and managing the server, ensuring scalability, high availability, data integrity, stored functions, and more.
Table of Contents (18 chapters)
1
Part 1: Introduction to Redis Stack
6
Part 2: Data Modeling
11
Part 3: From Development to Production

What is a primary database?

There is no formal definition of what a primary database is and what requirements it should have; the interpretation of what features a primary database should support largely depends on the use case the data store fulfills. However, by looking at how traditional DBMSs are used as primary and often unique solutions in the data layer, we can sketch a few traits:

  • A database can be considered primary when it is the authoritative source of data and stores the most recent copy of data. Secondary databases instead serve read-only workloads, either using the same technology as the primary database (using proprietary master-replica protocols) or as in-memory caches (using methods such as change data capture).
  • A primary database serves mixed online transactional processing (OLTP) workloads, such as searches or scans and lookups, and may have analytical processing capabilities.
  • A primary database is reliable and can stand single software or hardware...