Application Scenarios
The RDS-PostgreSQL instance allows you to modify the data synchronization of the primary/standby instances to meet your actual business needs. The synchronous mode options include Synchronous, Semi-synchronous, and Asynchronous.
• Synchronous: Verify that data changes for a transaction are synchronized to at least one Slave to improve data reliability.
• Semi-synchronous (default): Between synchronous mode and asynchronous mode. The system automatically increases or decreases the synchronous level according to the cluster status.
• Asynchronous: When data is modified, the Master returns data to the client immediately after execution, usually with high performance.
Procedure
1. Log in to the eSurfing Cloud Portal.
2. Click Console and select the corresponding resource pool, such as East China 1.
3. Select RDS-PostgreSQL and click to go to the RDS-PostgreSQL Console page.
4. On the List of Instances page, select the first column Instance Name/Instance ID in the first column of List of Instances, click the specified instance, and go to Instance Details.
5. In Basic Information on the Instance Details page, click the Modify item in Data Synchronization Mode.
6. On the pop-up screen, select the synchronization method you want to modify and click OK.
7. After the system modifies the database synchronization, go to the Instance Details page to view the modified Data Synchronization Mode.