Prometheus

Prometheus is an open-source systems monitoring and alerting toolkit originally built at SoundCloud. It collects and stores metrics as time series data, using a pull model over HTTP, and provides a flexible query language (PromQL) for real-time analysis and alerting. It is designed for reliability and scalability in dynamic cloud environments.

Also known as: Prometheus Monitoring, Prometheus TSDB, Prometheus Alertmanager, PromQL, Prom

Why learn Prometheus?

Developers should learn Prometheus for monitoring microservices, cloud-native applications, and containerized environments like Kubernetes, as it excels at collecting metrics from ephemeral services and enabling real-time performance analysis. It is particularly useful for setting up custom alerts based on metric thresholds to ensure system reliability and troubleshoot issues proactively.

Learning Resources

• docs: Prometheus Documentation
• video: Prometheus Tutorial for Beginners
• book: Prometheus: Up & Running
• course: Learn Prometheus on Coursera