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AWS Certified Solutions Architect - Professional · AWS
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No development effort needed so no need to migrate nonSQL or to Neptune. and no need to rework it based on lambda.
A: No guarantee that the work can finish within 15 minutes limit of Lambda B, C: Migrate MySQL to DynamoDB or Neptune? Big no no to migrate to different type of database unless the requirement says so. D: Classic architecture: ALB + ASG + EC2, scale based on CPU Utilization for cost optimization. The use of SSM to create AMI for launch template of ASG is correct. Aurora MySQL is compatible with current MySQL database.
A - you will spend some time to adapt an old platform to a lamdba function + the application works with mysql not with mongodb B - You do not want a smaller instance when you have a performance problem C - you will have to readapt a whole application to containerization on ECS which is not even the most flexible virtualization platform even if it theorically requires less maintenance D - The most classic way of migrating such application : you create a new platform, you make the application more scalable by using an ASG + you migrate your MySQL server from an overloaded EC2 instance to a managed service.