Prometheus
Open-source systems monitoring and alerting toolkit built for reliability.
Prometheus is an open-source systems monitoring and alerting toolkit originally built at SoundCloud. It collects metrics via pull model, stores them in a time-series database, and supports PromQL for querying. Features include alerting via Alertmanager, service discovery, and federation. The standard for Kubernetes monitoring.
- Best for: Monitoring & Observability
- Pricing: Free and open-source (Apache 2.0)
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Features
Alerting
Threshold and anomaly-based alerting
Dashboards
Visual dashboards for metrics and logs
Full-Stack APM
Application performance monitoring with traces, logs, and metrics
Horizontal Scaling
Scale out across nodes and regions
Integrations
Native integrations with other tools
Log Aggregation
Centralized log collection and search
Metrics
Time-series metric collection and storage
Multi-Tenancy
Isolation between teams and environments
Query Language
Custom query language for data analysis
Storage Backends
Flexible storage options (S3, local, cloud)
Best For
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