Scalability and Resilience - Part 1: Scalability Overview

Scalability is the ability of a database to constantly adjust its resources to meet application demands. MongoDB has a full range of vertical, horizontal, and elastic scaling options available, and they are built into MongoDB Atlas, MongoDB’s multi-cloud developer data platform.

Vertical and horizontal scaling — and which one to choose
Scaling proactively vs. reactively
How to choose cluster sizing and tier selection
Atlas cluster auto-scaling
Horizontal scaling with sharding
Serverless instances and elastic scaling

Scalability is a key requirement of modern, distributed applications and database systems. Make sure your applications are using the best practices for scaling.