Book Image

MongoDB Fundamentals

By : Amit Phaltankar, Juned Ahsan, Michael Harrison, Liviu Nedov
Book Image

MongoDB Fundamentals

By: Amit Phaltankar, Juned Ahsan, Michael Harrison, Liviu Nedov

Overview of this book

MongoDB is one of the most popular database technologies for handling large collections of data. This book will help MongoDB beginners develop the knowledge and skills to create databases and process data efficiently. Unlike other MongoDB books, MongoDB Fundamentals dives into cloud computing from the very start – showing you how to get started with Atlas in the first chapter. You will discover how to modify existing data, add new data into a database, and handle complex queries by creating aggregation pipelines. As you progress, you'll learn about the MongoDB replication architecture and configure a simple cluster. You will also get to grips with user authentication, as well as techniques for backing up and restoring data. Finally, you'll perform data visualization using MongoDB Charts. You will work on realistic projects that are presented as bitesize exercises and activities, allowing you to challenge yourself in an enjoyable and attainable way. Many of these mini-projects are based around a movie database case study, while the last chapter acts as a final project where you will use MongoDB to solve a real-world problem based on a bike-sharing app. By the end of this book, you'll have the skills and confidence to process large volumes of data and tackle your own projects using MongoDB.
Table of Contents (15 chapters)
Preface

Cluster Operations

Consider a scenario where one of your servers that is running a MongoDB database has reported memory errors. You are a bit worried because the computer is running the primary active member of your cluster. The server needs maintenance to replace the faulty DIMM (Dual In-Line Memory Module). You decide to switch over the primary instance to another server. The maintenance should take less than an hour, but you want to make sure that users can use their applications during the maintenance.

MongoDB cluster operations refer to such day-to-day administration tasks that are necessary for cluster maintenance and monitoring. This is especially important for clusters deployed manually, where users must fully manage and operate replica set clusters. In the case of the Atlas DBaaS managed service, the only interaction is through the Atlas web application and most of the work is done behind the scenes by MongoDB. Therefore, our discussion will be limited to MongoDB clusters...