Book Image

Learn MongoDB 4.x

By : Doug Bierer
Book Image

Learn MongoDB 4.x

By: Doug Bierer

Overview of this book

When it comes to managing a high volume of unstructured and non-relational datasets, MongoDB is the defacto database management system (DBMS) for DBAs and data architects. This updated book includes the latest release and covers every feature in MongoDB 4.x, while helping you get hands-on with building a MongoDB database app. You’ll get to grips with MongoDB 4.x concepts such as indexes, database design, data modeling, authentication, and aggregation. As you progress, you’ll cover tasks such as performing routine operations when developing a dynamic database-driven website. Using examples, you’ll learn how to work with queries and regular database operations. The book will not only guide you through design and implementation, but also help you monitor operations to achieve optimal performance and secure your MongoDB database systems. You’ll also be introduced to advanced techniques such as aggregation, map-reduce, complex queries, and generating ad hoc financial reports on the fly. Later, the book shows you how to work with multiple collections as well as embedded arrays and documents, before finally exploring key topics such as replication, sharding, and security using practical examples. By the end of this book, you’ll be well-versed with MongoDB 4.x and be able to perform development and administrative tasks associated with this NoSQL database.
Table of Contents (22 chapters)
Section 1: Essentials
Section 2: Building a Database-Driven Web Application
Section 3: Digging Deeper
Section 4: Replication, Sharding, and Security in a Financial Environment
Working with Complex Documents Across Collections

Choosing the filesystem type

Each OS offers a choice of filesystem types. Some filesystem types are older and less performant. However, they are not good candidates to run MongoDB. There are two main reasons for this: the need to support legacy applications and legacy files. The other reason is that OS vendors want to give their customers more choice.

The recommended filesystem types are summarized in this table:

OS Filesystem Notes
Linux kernel 2.6.25+ XFS This is the preferred filesystem.
Linux kernel 2.6.28+ EXT4 The next best choice for MongoDB on Linux.
Windows Server 2019, 2016, 2012 R2 ReFS Resilient File System (ReFS).
For information on currently supported OS versions, please have a look at this documentation reference:

Let's now look at other server considerations.