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

Summary

In this chapter, we have summarized the evolution of the programmability features of Redis, since the first Lua scripting feature was added in Redis 2.6.0, passing through the introduction of Redis functions in Redis 7, up to the most recent additions to Redis Stack – the introduction of the V8 engine and the ability to write JavaScript functions.

While Lua scripts and functions (which allow complex actions as close to the data as possible to be written) are of great value to developers, JavaScript functions and the asynchronous nature of the V8 engine provide an unprecedented capability to offload part of the processing load to coroutines, while preserving a single-threaded data access model, which is the distinguishing feature of the Redis Server architecture. In addition, the support for clustered environments with remote functions expands the manageability of data when working with sharded databases. Finally, the real-time stream processing capability of Redis...