Amazon DocumentDB

Definition

A fully managed document database service from AWS that is compatible with MongoDB workloads, simplifying document storage and retrieval.

Use Cases

Provider Equivalents

Frequently Asked Questions

What's the difference between Amazon DocumentDB and MongoDB?
Amazon DocumentDB is an AWS-managed document database service that is compatible with the MongoDB API, but it is not the same product as MongoDB. It is built by AWS on a different underlying architecture that separates compute and storage. Many MongoDB applications can connect with minimal changes, but feature support, performance characteristics, administration tools, and version-specific behavior may differ. If your application depends on specific MongoDB features, you should verify compatibility before migrating.
When should I use Amazon DocumentDB?
Use Amazon DocumentDB when your application stores semi-structured or rapidly changing data as JSON-like documents and you want a managed AWS service instead of running your own MongoDB infrastructure. It is a good fit for content management systems, user profile stores, product catalogs, event-driven applications, and applications that need read scaling, backups, encryption, and integration with AWS networking and security services. It is less ideal if you need full native MongoDB feature parity or if a relational database would better match your data model and query patterns.
How much does Amazon DocumentDB cost?
Amazon DocumentDB pricing depends mainly on instance size, number of instances, storage consumed, backup storage, and I/O usage. Costs increase when you add read replicas, choose larger instance classes, or store more data. Backup retention and cross-region designs can also affect price. The most accurate way to estimate cost is to use the AWS Pricing Calculator and model your expected instance hours, storage growth, and read/write activity.

Category: database

Difficulty: intermediate

Related Terms

See Also