Alibaba Cloud uses one of the following two methods to check the availability (health status) of your ApsaraDB RDS instance: short-lived connection and persistent connection. By default, long-lived connections are used.

  • If your application frequently establishes and closes connections to your RDS instance, we recommend that you use short-lived connection for the availability test.
  • If your application uses a data connection pool, we recommend that you use persistent connection for the availability test.
Note When you change the detection method, the workloads on your RDS instance continue to run as normal.