Hands-On Microservices with Spring Boot and Spring Cloud

Examining Prometheus metrics

In the Changes in source code for collecting application metrics section, we configured Prometheus to collect metrics from our microservices. We can actually make a call to the same endpoint and see what metrics Prometheus collects. Run the following command:

curl http://product-composite.hands-on.svc.cluster.local:4004/actuator/prometheus -s

Expect a lot of output from the command, as in the following example:

Among all of the metrics that are reported, there are two very interesting ones:

• resilience4j_retry_calls: Resilience4j reports on how its retry mechanism operates. It reports four different values for ...