Creating a Read Replica

Scenarios

Read replicas of an instance are used to enhance instance capabilities and reduce the read pressure on the primary node.

You can add read replicas to an existing yearly/monthly or pay-per-use instance.

Procedure

1. Log in to the management console.
2. Click in the upper left corner and select a region and a project.
3. Click in the upper left corner of the page, choose Database > GaussDB(for MySQL).
4. On the Instances page, locate the instance that you want to create read replicas for and choose More > Create Read Replica in the Operation column.
5. On the Create Read Replica page, configure Failover Priority and Quantity.
   • For a yearly/monthly instance, click Buy Now and select a payment mode.
   • For a pay-per-use instance, click Next.

6. Check the read replica settings.
   • If you need to modify the settings, click Previous.
   • If you do not need to modify the settings, click Submit.

7. View the new read replica information in the Node List area of the Basic Information page. You can also promote a read replica to primary or delete a read replica.