Updated on 2025-06-13 GMT+08:00

Typical Use Cases

Reducing Read Pressure with Read/Write Splitting

RDS for MySQL supports read replicas to offload read traffic from primary DB instances.

RDS for MySQL primary instances and read replicas have independent connection addresses. A maximum of 10 read replicas can be created for each RDS for MySQL DB instance. For details about how to create a read replica, see Creating a Read Replica.

To offload read pressure on the primary DB instance, you can create one or more read replicas in the same region as the primary instance. These read replicas can process a large number of read requests and increase application throughput.

Storing Diverse Data Types

RDS can work with Distributed Cache Service (DCS) for Redis, GeminiDB Redis API, and OBS to store different types of data.

Figure 1 Storing diverse data types