Reproducer for spring-projects/spring-boot#25610
- Start the application
- Run
curl -s localhost:8080/actuator/prometheus | grep ^bug
You get something like:
bug_instance_total{tag="1",} 1.0
bug_instance_total{tag="2",} 1.0
bug_instance_total{tag="3",} 1.0
bug_instance_total{tag="4",} 1.0
bug_instance_total{tag="5",} 1.0
bug_instance_total{tag="6",} 1.0
bug_instance_total{tag="7",} 1.0
bug_instance_total{tag="8",} 1.0
bug_instance_total{tag="9",} 1.0
bug_instance_total{tag="0",} 1.0
bug_static_total{tag="0",} 10.0
The code which has created these metrics is in Runner. The tags are attached via a MeterFilter, see CustomMeterFilter.
I expected no difference in using Metrics.counter("bug.static").increment() vs. meterRegistry.counter("bug.instance").increment();, but the metrics registered via Metrics have missing tags.