| Website | prometheus.io |
| Category | Monitoring |
| License | Open Source (Apache 2.0) |
| Pricing | Free and open source; managed Prometheus services are available through third-party platforms. |
Overview
Prometheus is a powerful open-source monitoring system for cloud-native metrics, alerting, and service discovery.
Pros
- Powerful PromQL query language
- Strong cloud-native and Kubernetes support
- Built-in alerting with Alertmanager
- Excellent ecosystem and Grafana integration
- Efficient time-series data model
Cons
- No built-in dashboards
- Long-term storage needs extra tooling
- High-cardinality metrics can be costly
- HA setup can be complex
Verdict
Prometheus excels at metrics collection, querying, and alerting for modern cloud-native environments. It is best suited for DevOps and SRE teams comfortable managing their own monitoring stack. The main trade-off is that dashboards, retention, and HA often require additional tools.
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