One way to scale performance without incurring downtime is to offload reads to the replicas by adding read replicas to your primary instance. This method enables you to free up write capacity on the primary server. Adding a replica instance does not incur any downtime on your primary instance and is very easy from the Tessell console.
1. Add Read replica
Go to my Services -> Select the required instance -> Click Create Replica -> Choose Read Only Replica
This will start the process of add read replica to the database service.
2. Connecting to Read Replica
Once the Read replica is provisioned use the read replica endpoint to connect and use it for read scalability.