[CASSANDRA-17968] Dropwizard metrics output in Prometheus format

• Type: Improvement
• Status: Triage Needed
• Priority: Normal
• Resolution: Unresolved
• Component/s: Observability/Metrics
• Platform: All
• Assignee: Unassigned
• Reporter: Sarma Pydipally
• Created: 18/Oct/22 00:25
• Updated: 19/Oct/22 16:48

Description

in Apache Cassandra :

we already have Dropwizard metrics module pre-integrated. I wrote about it on my GitHub : https://github.com/sarma1807/Prometheus-Grafana-Cassandra/tree/main/01_Cassandra_metrics-reporter

we should have a feature where Cassandra Dropwizard module can directly write these metrics into Prometheus format.

then we can feed those metrics directly to Prometheus for metrics collection.

we do not have to expose this as a webservice - instead of writing just metrics in plain text ... it should write in Prometheus format into a file on each server.