RDS Read Replicas

Question 1

What are RDS Read Replicas?

Answer 1

RDS Read Replicas are secondary copies of your primary database that handle read-only traffic, helping to distribute the load and increase the application’s read throughput.

Example: RDS Read Replicas help offload read queries from the primary database.

Question 2

Why use RDS Read Replicas?

Answer 2

Performance Enhancement: Improves database performance by offloading read queries from the primary database.
Scalability: Scales out beyond the capacity constraints of a single DB instance for read-heavy database workloads.

Example: RDS Read Replicas help improve read throughput and scalability.

Question 3

What key features do RDS Read Replicas offer?

Answer 3

Data Replication: Uses asynchronous replication from the primary RDS instance to the read replicas.
Availability: Increases application availability by providing additional endpoints for read queries.

Example: RDS Read Replicas use asynchronous replication for data consistency.

Question 4

In what scenarios are RDS Read Replicas particularly useful?

Answer 4

Data-heavy Applications: Ideal for applications with heavy read traffic where the database is a performance bottleneck.
Reporting and Analytics: Useful for running business intelligence and analytics queries without impacting transactional performance.

Example: RDS Read Replicas are beneficial for data-intensive applications and analytics workloads.