Hi, Can someone please point me to documentation of druid monitoring using Prometheus. I see somewhere that exporter needs to be installed separately but When I am using emitter as Prometheus. I guess I dont need it. What configuration I can do on Prometheus side ?

I’m pretty sure you will need to add the extension. Have you seen https://druid.apache.org/docs/latest/development/extensions-contrib/prometheus ?

Yes, I added the extension

&& mv /extensions/prometheus-emitter/  /build/usr/local/druid/extensions/

to extension list and also in the configuration. Including the extension in druid.extensions.loadList. Also added below configuration as well druid.emitter=prometheus druid.emitter.prometheus.strategy=exporter