限流方式需要增加“并发限流”的模式

[qdsordinarydream]

What is the feature you want to add?
限流方式需要增加“并发限流”的模式
Why do you want to add this feature?
业务需求
How to implement this feature?

现在有 qps 和 并发数量，需要判断当存在这个类型的时候，走并发限流判断
当前实例同时处理的请求数，实例维度判断
Additional context
Add any other context or screenshots about the feature request here.