Do you have experience in configuring and monitoring system metrics?

Yes, I have experience configuring and monitoring system metrics in Java. Typically, libraries such as Micrometer or Dropwizard Metrics are used for this purpose, which allow collecting data on performance, memory usage, response time, and other parameters.

For metric monitoring, systems are often integrated with Prometheus and data is visualized through Grafana. An example of setting up a metric with Micrometer:

import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Timer;

public class Service {
    private final Timer responseTimer;

    public Service(MeterRegistry registry) {
        this.responseTimer = registry.timer("service.response.time");
    }

    public void process() {
        responseTimer.record(() -> {
            // processing code
        });
    }
}

This way, you can track operation execution times and other important metrics, which helps identify bottlenecks and improve performance.