In an application scenario where there are a small number of write requests to the database, but there are a large number of read requests, a single instance may not be able to resist reading pressure or even may affect the main services. In order to achieve the flexible expansion of read capabilities and share the pressure of the database, one or more read-only instances can be created in a certain region, by which, a large number of database read requirements can be met, thereby increasing the throughput of the application.
JCS for MySQL/Percona/MariaDB service read-only instance is a single-node architecture that synchronizing changes to the primary instance to all read-only instances through original replication.
Login RDS Console.
Select the instance that required to be added with the read-only instance, click the name of the target instance, and enter the instance detailed page.
Select the tag of Read-only Instance Management, open the read-only instance management page and click Add Read-only Instance to create a read-only instance.
Description for the interface parameter of a read-only instance creation
Click Buy Now to enter the order confirmation page.
Read the RDS Terms of Service and click Instant Account Setup to start creating read-only instances.