如何查看确认adb实例当前controller、worker节点个数
Aascm上进入需要查看的实例详情界面可以查看具体的controller
B高权限账号登录数据库，执行sql：select role, count(*) as cnt from information_schema.kepler_node_info group by role;
C登录console，overview界面，计算资源中可以看到controller
D登录console，Node Info界面，controllers栏查看controller节点个数，workers栏查看worker节点个数