Observability enhancement

[xxm404]

APISIX support health check for upstreams, why not expose healthy/unhealthy nodes metrics ? like AWS ELB, support many useful metirc https://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-cloudwatch-metrics.html

[tokers]

Sounds good, do you have some specific proposals?

[xxm404]

Maybe APISIX need to expose healthy nodes metrics by Prometheus format when opening the upstream health check(same for other metrics) and also monitor metrics should be set default opening, the API gateway need more monitor metrics

[xxm404]

For target(nodes) health/unhealthy metrics, we can make some counters to record health nodes or unhealthy nodes, when a health check request failed we should increase the unhealthy counter and reduce the health counter.

[tokers]

Would you like to write a proposal to the dev@apisix.apache.org?

[xxm404]

how should I do?

[juzhiyuan]

Here is the Mailing list subscription guide, see https://apisix.apache.org/docs/general/subscribe-guide

After you subscribe the mailing list, kindly send a mail with title [DISCUSS] XXX to dev@apisix.apache.org

[juzhiyuan]

e.g https://lists.apache.org/list.html?dev@apisix.apache.org

[xxm404]

Thanks, I will send mail to dev@apisix.apache.org