[DISCUSSION] KIP-324: Add method to get metrics() in AdminClient

[Yishun Guan]

Hi All,

I created a KIP to extract metrics() from AdminClient, here is the link:

https://cwiki.apache.org/confluence/x/lQg0BQ

Let me know what you think. Thanks @guozhangwang and @mjsax for guiding me.

Best,
Yishun