ofek commented on issue #13865:
URL: https://github.com/apache/pulsar/issues/13865#issuecomment-1018636169


   Prometheus metrics should have `TYPE` information so consumers know how to 
process them 
https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#metricfamily-metadata
   
   They usually have `HELP` metadata as well:
   
   ```
   # TYPE go_goroutines gauge
   # HELP go_goroutines Number of goroutines that currently exist.
   go_goroutines 9000
   ```


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