Reverse Proxy Stats



I’m wondering what people are doing for Reverse Proxy stats. Most
seem to be incomplete or may have bit rot. I’m looking to see the

  1. Active sessions to upstream servers
  2. Request distribution to upstream servers
  3. Upstream health status.
  4. Upstream server stats, response time, etc.

I know I can log some of this to the log files, but it seems like a
page is needed. What are people doing using this in production as a
reverse proxy?

Matt P.