The PrometheusReporter acts as a scraping target for a single process.
If you already have setup something in the Flink cluster that allows
Prometheus/ServiceMonitor to scrape (Flink) metrics, then it shouldn't
be necessary.
It doesn't coordinate with other services in any way; it just has access
to Flink metrics and waits for someone to scrape them.
On 05/08/2020 23:28, Avijit Saha wrote:
Hi,
Have a general question about Flink support for Prometheus metrics. We
already have a Prometheus setup in our cluster with ServiceMonitor-s
monitoring ports like 8080 etc. for scraping metrics.
In a setup like this, if we deploy Flink Job managers/Task managers in
the cluster, is there any need to have the PrometheusReporter
configured as well? How does that coordinate with existing
Prometheus ServiceMonitors if present?
Is the PrometheusReporter based on "pull" model so that it can pull
metrics from Flink and send to some Prometheus host system?
Thanks
Avijit
