Metrics don't work

[evgeny-mordyasov]

An example of a simple Quarkus project with a problem:
https://github.com/evgeny-mordyasov/code-with-quarkus

I have enabled the following metric dependencies:

        <dependency>
            <groupId>io.quarkus</groupId>
            <artifactId>quarkus-micrometer-registry-prometheus</artifactId>
        </dependency>
        <dependency>
            <groupId>io.quarkus</groupId>
            <artifactId>quarkus-micrometer</artifactId>
        </dependency>
        <dependency>
            <groupId>io.micrometer</groupId>
            <artifactId>micrometer-registry-prometheus</artifactId>
        </dependency>

The quarkus-micrometer-registry-prometheus dependency contains the io.micrometer.prometheus.PrometheusMeterRegistry class, and the micrometer-registry-prometheus dependency contains the io.micrometer.prometheusmetrics.PrometheusMeterRegistry class.
In my MetricsConfig config, I create an instance of the io.micrometer.prometheusmetrics.PrometheusMeterRegistry class. And in the settings I set the property quarkus.micrometer.export.prometheus.default-registry=false.
When I launch the application through Application and try to get metrics for http://localhost:8080/q/metrics , then the page loads endlessly.
If the property is set to quarkus.micrometer.export.prometheus.default-registry=true, the metrics page loads. But I can't see my custom abc metric.

How do I register the MeterRegistry implementation correctly? What I need is io.micrometer.prometheusmetrics.PrometheusMeterRegistry.

[quarkus-bot[bot]]

/cc @ebullient (metrics), @jmartisk (metrics)

[evgeny-mordyasov]

Quarkus is only compatible with the io.micrometer.prometheus.PrometheusMeterRegistry class.