Migrating a big table from RDS to DynamoDB

To alleviate stress on the RDS Oracle, we are migrating a large table to DynamoDB, allowing applications to leverage both databases to scale the system effectively. Additionally, select data is stored in Redis to ensure rapid response times for web applications and backend processes. Existing applications on EC2 and AWS Lambda functions now access all three databases—RDS, DynamoDB, and Redis—each serving distinct purposes to optimize performance and reduce database load.