RDS运维事件闪断时间为多久？闪断时间30秒左右，建议设置为业务低峰期，且确保应用有自动重连机制。https://help.aliyun.com/zh/rds/apsaradb-rds-for-mysql/switch-workloads-over-between-primary-and-secondary-apsaradb-rds-for-mysql-instances?spm=a2c4g.11186623.0.0.712741