Have you had experience using systems for tracking application status and performance?

Yes, I have worked with monitoring and application health tracking systems such as Prometheus and Grafana. They allow collecting performance metrics, service status, and visualizing data in real-time.

For example, in Java applications, you can use the Micrometer library to export metrics to Prometheus. This helps quickly identify performance issues and respond to them.

I am also familiar with using Java Management Extensions (JMX) for monitoring JVM and applications, which allows tracking memory usage, CPU load, and other parameters.