Mastering MongoDB 6.x - Third Edition

10

Managing Storage Engines

MongoDB introduced the concept of pluggable storage engines in version 3.0. After the acquisition of WiredTiger, it introduced its storage engine as optional at first, and then as the default storage engine for the current version of MongoDB. In this chapter, we will deep dive into the concept of storage engines, why they matter, and how we can choose the best one according to our workload.

We will also discuss the concept of database locking, why it used to be important, and how it is becoming increasingly less important with the WiredTiger storage engine.

In this chapter, we will cover the following topics:

• Pluggable storage engines
• Locking in MongoDB

Pluggable storage engines

With MongoDB breaking out from the ...