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Redis 4.x Cookbook

5 (4)

Redis 4.x Cookbook

5 (4)

Overview of this book

Redis is considered the world's most popular key-value store database. Its versatility and the wide variety of use cases it enables have made it a popular choice of database for many enterprises. Based on the latest version of Redis, this book provides both step-by-step recipes and relevant the background information required to utilize its features to the fullest. It covers everything from a basic understanding of Redis data types to advanced aspects of Redis high availability, clustering, administration, and troubleshooting. This book will be your great companion to master all aspects of Redis. The book starts off by installing and configuring Redis for you to get started with ease. Moving on, all the data types and features of Redis are introduced in detail. Next, you will learn how to develop applications with Redis in Java, Python, and the Spring Boot web framework. You will also learn replication tasks, which will help you to troubleshoot replication issues. Furthermore, you will learn the steps that need to be undertaken to ensure high availability on your cluster and during production deployment. Toward the end of the book, you will learn the topmost tasks that will help you to troubleshoot your ecosystem efficiently, along with extending Redis by using different modules.

Preface

Preface

Who this book is for

What this book covers

To get the most out of this book

Sections

Get in touch

Free Chapter

Getting Started with Redis

Getting Started with Redis

Introduction

Downloading and installing Redis

Starting and shutting down Redis

Connecting to Redis with redis-cli

Getting server information

Understanding the Redis Event Model

Understanding the Redis protocol

Data Types

Data Types

Introduction

Using the string data type

Using the list data type

Using the hash data type

Using the set data type

Using the sorted set data type

Using the HyperLogLog data type

Using the Geo data type

Managing keys

Data Features

Data Features

Introduction

Using bitmaps

Setting expiration on keys

Using SORT

Using pipelines

Understanding Redis transactions

Using PubSub

Using Lua

Debugging Lua

Developing with Redis

Developing with Redis

Introduction

When to use Redis in your application

Using the correct data types

Using the correct Redis APIs

Connecting to Redis with Java

Connecting to Redis with Python

Connecting to Redis with Spring Data Redis

Writing a MapReduce job for Redis

Writing a Spark job for Redis

Replication

Replication

Introduction

Setting up Redis replication

Optimizing replication

Troubleshooting replication

Persistence

Persistence

Introduction

Manipulating RDB

Exploring RDB

Manipulating AOF

Exploring AOF

Combining RDB and AOF

Setting Up High Availability and Cluster

Setting Up High Availability and Cluster

Introduction

Setting up Sentinel

Testing Sentinel

Administrating Sentinel

Setting up Redis Cluster

Testing Redis Cluster

Administrating Redis Cluster

Deploying to a Production Environment

Deploying to a Production Environment

Introduction

Deploying Redis on Linux

Securing Redis

Setting client connection options

Configuring memory policy

Benchmarking

Logging

Administrating Redis

Administrating Redis

Introduction

Managing Redis Server configurations

Operating Redis using bin/redis-cli

Backup and restore

Monitoring memory

Managing clients

Data migration

Troubleshooting Redis

Troubleshooting Redis

Introduction

Health checking in Redis

Identifying slow queries using the SLOWLOG

Troubleshooting latency issues

Troubleshooting memory issues

Troubleshooting crash issues

Extending Redis with Redis Modules

Extending Redis with Redis Modules

Introduction

Loading a Redis module

Writing a Redis module

The Redis Ecosystem

The Redis Ecosystem

Introduction

The Redisson client

Twemproxy

Codis – a proxy-based high-performance Redis Cluster solution

The CacheCloud Redis management system

Pika – a Redis-compatible NoSQL database

Windows Environment Setup

Windows Environment Setup

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Preface

Redis, as a popular key-value in-memory data store, is gaining more and more attention recently for its high-performance, diversified data types with powerful APIs, high availability, and scalable architecture. It has been successfully ranked at number 9 in the top 10 databases in the DB-Engine Complete Ranking since 2017. Even before that, it had been at the top of the key-value stores ranking provided by DB-Engine for quite a long time. From the early version, 2.x, to the latest version, 4.x, many fantastic features of Redis have been added to help those who want to deliver low-latency services in their business scenarios.

Based on the latest version of Redis 4.x, Redis Cookbook offers you both step-by-step recipes and relevant background information. It covers everything from a basic understanding of Redis data types to advanced aspects of Redis such as high availability, clustering, administration, and troubleshooting.

With the concept of Learning by doing is the best approach in mind, we have spared no effort to deliver the knowledge of Redis through real use cases in writing the recipes in this book. In other words, this book offers out-of-the-box solutions for many common development and maintenance problems. Especially on your personal computer, you will be able to catch the key points of each recipe easily by following the steps in the How to do it section of every recipe. Furthermore, it's not enough for you to know just how to reach your goal with Redis; explanatory notes of the steps you take within a certain task will be provided in the How it works... section. We also offer essential relevant information and necessary explanations of the internal workings of Redis in the There's more... section. The better you understand how Redis works, the more you can make informed decisions regarding the trade-offs that are involved in engineering. Every recipe is structured in this organized way.

Lastly, we do hope this book gives you a better understanding of Redis and enables you to learn more best practices when you use Redis in your environment.

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