Which solution will meet these requirements with the LEAST operational effort?
Create a read replica for the DB instance. Query the replica DB instance instead of the primary DB instance.
Migrate the data to an Amazon DynamoDB database.
Configure the Amazon Aurora MySQL DB instance for Multi-AZ deployment.
Create a proxy in Amazon RDS Proxy. Query the proxy instead of the DB instance.
Explanations:
Creating a read replica helps in distributing read queries but does not solve the issue of too many connections to the primary DB instance. It does not reduce the overall connection count to the primary instance, which is where the error is occurring.
Migrating to Amazon DynamoDB may reduce connection issues, but it requires significant operational effort, including re-architecting the application and managing data migration, which contradicts the requirement for the least operational effort.
Configuring Multi-AZ deployment provides high availability and failover support but does not increase the maximum number of connections allowed. This option does not address the issue of connection limits directly.
Using Amazon RDS Proxy can help manage and pool database connections effectively. It can reduce the number of connections to the Aurora DB instance by pooling and reusing them, thereby addressing the “too many connections” error with minimal operational effort.
I infer that the answer is:
Create a proxy in Amazon RDS Proxy. Query the proxy instead of the DB instance.