Apache-2.0
Prometheus
Open-source metrics monitoring and alerting
An open-source time-series monitoring system that scrapes metrics and evaluates alert rules.
In depth
What it is
Prometheus is an open-source time-series monitoring system that scrapes metrics and evaluates alert rules.
Key features
- Scraping - Pull-based metrics scraping and service discovery.
- PromQL - PromQL query language for metrics.
- Alerting - Alerting integration via Alertmanager.
- Ecosystem - Exporter ecosystem for common services.
Strengths
- Scraping - Pull-based metrics scraping and service discovery.
- PromQL - PromQL query language for metrics.
- Alerting - Alerting integration via Alertmanager.
Trade-offs
- Long-term storage - Long retention requires remote storage components.
- Cardinality - High-cardinality metrics can cause performance issues.
- Scaling - Large environments need federation and sharding patterns.
Pricing
Open-source software. Direct license cost is zero; costs are typically infrastructure, operations, and optional paid support or hosting.
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