AWS CodeCommit leverages Amazon S3 and DynamoDB for efficient storage and metadata management. It stores the actual code files in S3, a highly durable and scalable object storage service. This ensures high availability and redundancy of your source code.
For metadata management, CodeCommit uses DynamoDB, a NoSQL database service providing low-latency and high-throughput performance. Metadata includes commit history, branches, tags, and repository settings. By utilizing DynamoDB, CodeCommit can quickly access and update metadata, enabling seamless collaboration among developers.