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

Redis functions

Redis functions are an evolution of ephemeral scripting in Redis. They provide similar functionality as scripts but are considered first-class software artifacts within the database. Functions are managed and persisted by Redis, ensuring their availability through data persistence and replication. Unlike scripts, functions are declared before use and do not need to be loaded during runtime.

Here are some advantages of Redis functions over Lua scripts:

  • Persistence and replication: Redis manages functions as part of the database and stores them alongside the data itself ensuring their persistence (RDB snapshots and/or append-only files) and replication along with the data. Functions are considered integral components of the database, making them readily available without the need for external management.
  • Simplified development and code sharing: Functions belong to libraries, and libraries can contain multiple functions. Functions within the same library...