Pinot's metrics plugins select which JMX backend publishes internal metrics. The important distinction is not the metric name but the implementation that emits it.
Built-in Backends
Plugin
Role
Yammer
Default metrics backend in many Pinot deployments
Dropwizard
Alternate JMX metrics backend
Compound
Fan-out backend that publishes to multiple registries
What this page covered
The built-in metric backends.
Why plugin selection matters for observability.
Where to look when you need to wire metrics into Pinot.
Next step
Check the component you are configuring, then verify the plugin name and any required registry settings before restarting the service.