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
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