This section exemplifies how the Prometheus forwarding agent can be used. The scenario is the following:
The Prometheus agent is used to send metrics from a workflow to the cache that exposes them for a Prometheus instance to scrape.
A Pulse agent sends a simple PulseUDR to an Analysis agent.
The Analysis agents creates a PrometheusUDR. It uses the label country. The value is generated randomly to visualize fluctuation.
As the next step the PrometheusUDR is routed on route r_2 to the Prometheus forwarding agent.
You create PromethueusUDRs in the Analysis agent. It has to be filled in with metric data.
//New UDR representing a metric: PrometheusUDR metric = udrCreate(PrometheusUDR); //Map containing labels and their values: map<string,string> labels = mapCreate(string,string); mapSet(labels, "country", "session.country"); metric.Description = "Items being process"; metric.Labels = labels; metric.MetricType = "GAUGE"; metric.Name = "myMetric_value"; metric.Value = randomInt(111); udrRoute(metric);
The Analysis agent routes the UDR to the Prometheus agent, which stores it in the cache where it waits to be scraped by a Prometheus instance.
After running the workflow for a few moments the metrics can be visualized directly in Prometheus or in Grafana (if configured).
