help request: 负载策略采用chash时，如果没有key，默认是根据remote_addr hash，可是客户端ip比较固定，能不能如果没key，就round-robin轮询。

[hnzhuzi]

Description

负载策略采用chash时，如果没有key，默认是根据remote_addr hash，可是客户端ip比较固定，能不能如果没key，就round-robin轮询。

Environment

• APISIX version (run apisix version): 3.8

[hnzhuzi]

When the load strategy uses chash, if there is no key, the default is based on remote_addr hash, but the client IP is relatively fixed(all traffic will visit a single node). If there is no key, can round-robin polling be performed?

[wklken]

It's reasonable to use a default key to chash then choose the upstream (It would be much more complex if use a fallback strategy)

I think you should check what key can be performed like RR, or just use RR directly.