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

Performing similarity search

Now that we have created an index that’s suitable to the vector length and type (FLOAT32 or FLOAT64), and we have chosen the right distance concerning the data represented by the vector embeddings (we care about the orientation of the vectors, or we are also interested in their magnitude), we can perform a comparison. Let’s consider a simple scenario based on the former example. We have three sentences in our database stored as Hashes, along with their vector embeddings:

  • doc:1 stores This is a technical document, it describes the SID sound chip of the Commodore 64
  • doc:2 stores The Little Prince is a short story by Antoine de Saint-Exupéry, the best known of his literary productions, published on April 6, 1943 in New York
  • doc:3 stores Pasta alla carbonara is a characteristic dish of Lazio and more particularly of Rome, prepared with popular ingredients and with an intense flavour.

We will calculate the corresponding...