Micrometer gauge not appearing on prometheus endpoint

Question

I have instrumented my code inside a method for micrometer gauge like this:

SimpleMeterRegistry registry = new SimpleMeterRegistry();
Gauge
     .builder("greeting_service_gauge", new AtomicInteger(new Random().nextInt(10)), AtomicInteger::get)
     .register(registry);

I have added few other metrics too.

Other metrics appear on prometheus endpoint, but this gauge metrics doesn't.

What am I missing here?

score 2 · Answer 1 · answered Jan 21 '21 at 15:43

2

You are registering the gauge to the SimpleMeterRegistry. Instead you should be registering the metric to the Prometheus registry (or the CompositeMeterRegistry)

You can inject the MeterRegistry if this is a Spring project. Or use the global Metrics.globalRegistry to get the composite one.

Gauge
     .builder("greeting_service_gauge", new AtomicInteger(new Random().nextInt(10)), AtomicInteger::get)
     .register(Metrics.globalRegistry);

answered Jan 21 '21 at 15:43

checketts

14,167
10
53
82

having similar issue with AWS - gauge is not visible on aws CloudWatch – Bhushan Karmarkar Aug 30 '21 at 10:09
Are you commenting to say my answer helped you? If not, I recommend creating a new question – checketts Aug 30 '21 at 14:32
https://stackoverflow.com/questions/68984348/confusion-about-micrometer-metrics-isnt-the-gauge-supposed-to-calculate-the-v I've few basic doubts, will be great if you can check @checketts – Bhushan Karmarkar Aug 30 '21 at 14:33

Micrometer gauge not appearing on prometheus endpoint

1 Answers1