Book Image

Mastering MongoDB 3.x

By : Alex Giamas
Book Image

Mastering MongoDB 3.x

By: Alex Giamas

Overview of this book

MongoDB has grown to become the de facto NoSQL database with millions of users—from small startups to Fortune 500 companies. Addressing the limitations of SQL schema-based databases, MongoDB pioneered a shift of focus for DevOps and offered sharding and replication maintainable by DevOps teams. The book is based on MongoDB 3.x and covers topics ranging from database querying using the shell, built in drivers, and popular ODM mappers to more advanced topics such as sharding, high availability, and integration with big data sources. You will get an overview of MongoDB and how to play to its strengths, with relevant use cases. After that, you will learn how to query MongoDB effectively and make use of indexes as much as possible. The next part deals with the administration of MongoDB installations on-premise or in the cloud. We deal with database internals in the next section, explaining storage systems and how they can affect performance. The last section of this book deals with replication and MongoDB scaling, along with integration with heterogeneous data sources. By the end this book, you will be equipped with all the required industry skills and knowledge to become a certified MongoDB developer and administrator.
Table of Contents (13 chapters)

Cloud options for a replica set

We can set up and operate a replica set from our own servers but we can reduce our operational overhead by using a database as a service (DBaaS) provider to do it. The two most widely used MongoDB cloud providers are mLab (former MongoLab) and MongoDB Atlas, the native offering from MongoDB Inc.

In this section, we will go over these options and how they fare against using our own hardware and data centers.


mLab is one of the most popular cloud DBaaS providers for MongoDB. It has been offered since 2011 and is considered a stable and mature provider.

After signing up, we can easily deploy a replica set cluster in a set of cloud servers without any operational overhead. Configuration options...