Prometheus is a leading open-source monitoring solution and time series database, particularly well-suited for cloud-native environments. It provides a powerful and flexible system for collecting, storing, and querying metrics.
Key Features:
- Dimensional Data Model: Time series are identified by a metric name and key-value pairs, enabling rich and flexible data representation.
- PromQL Query Language: A powerful query language to select, aggregate, and transform time series data.
- Alerting: Define alerting rules based on PromQL expressions to trigger notifications.
- Service Discovery: Integrates with Kubernetes and other cloud platforms for automatic service discovery.
- Simple Operation: Prometheus servers are standalone and rely only on local storage.
- Instrumentation Libraries: Offers client libraries for many languages to instrument applications directly.
- Exporters: Integrates with existing systems using exporters to extract metrics.
Use Cases:
- Monitoring Applications: Track performance metrics of applications and services.
- Infrastructure Monitoring: Monitor the health and resource utilization of servers and infrastructure components.
- Alerting and Anomaly Detection: Configure alerts to notify operators of critical issues.
- Capacity Planning: Analyze historical data to forecast future resource needs.
- Root Cause Analysis: Correlate metrics from different systems to identify the cause of performance problems.
