Advantage Of Read Replicas
- Gives an ability to scale read operation in relational databases in order to support read-intensive workloads.
- Read replicas can be promoted to their own standalone database instance at any time.
- Reduces the data access time by deploying the read replicas in multiple regions.
- You can reduce the load of the source DB by routing the read queries to read replicas.
RDS Read Replicas – How It is Different from RDS Multi-AZ Deployment
Amazon RDS (Relational Database Service) is a fully managed service by AWS to deploy and scale relation database systems in the cloud. Amazon RDS supports a lot of relation database engines such as MYSQL, PostgreSQL, Oracle, SQL Server, etc.
Amazon RDS comes with a lot of handy features such as encryption, scaling, snapshotting, disaster recovery, etc. Therefore, the can developer can focus on the development of the application without worrying about the underlying database infrastructure.
Note: RDS supports both horizontal and vertical scaling methodologies.