Istio document states there are 3 metrics endpoints
The configured Prometheus add-on scrapes three endpoints:
istio-mixer.istio-system:42422): all Mixer-generated mesh metrics.
istio-mixer.istio-system:9093): all Mixer-specific metrics. Used to monitor Mixer itself.
istio-mixer.istio-system:9102): raw stats generated by Envoy (and translated from Statsd to Prometheus).
However in the istio mixer service and telemetry pod I was able to find only 2(42422 and 9093) . I even tried to expose 910 port in both deployment and service. But no metrics was coming on this port.
Is the document out of date? D we have to do something to get the envoy raw stats if required?
Does these stats provide any useful information that we cannot get from mesh and mixer stats?