The tenant has deployed the MySQL database in the ECS instance of the HUAWEI CLOUD ECS. As the business volume continues to increase, the user finds that the number of concurrent connections to the…

The tenant has deployed the MySQL database in the ECS instance of the HUAWEI CLOUD ECS. As the business volume continues to increase, the user finds that the number of concurrent connections to the database is insufficient, and the IOPS of the disk cannot meet the business requirements. Therefore, it is recommended that the user adopt which of the following service to solve the problem?