What data can Prometheus monitor?

Prometheus can monitor the following data:

1. The system resource usage, such as CPU utilization, memory usage, and disk space.
2. Internet traffic and bandwidth usage.
3. Performance metrics of the application, such as request processing time, throughput, error rate, etc.
4. Database performance metrics, such as query execution time, number of connections, cache hit ratio, etc.
5. Information about the status of servers and containers, such as startup time, running status, and overall health.
6. Customize metrics can be configured to monitor specific data indicators based on demand.

Overall, Prometheus has a wide range of data that can be monitored, providing rich monitoring and alert functions to help users understand the operational status of systems and applications in real time and promptly detect and resolve issues.