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Riemann

Open SourceFunded

Real-time, low-latency infrastructure monitoring with powerful event processing.

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About Riemann

Riemann is an open-source network and infrastructure monitoring system designed to aggregate and process events from distributed systems in real-time. It enables operations teams to track application exceptions, latency distributions, resource usage, and user activity with minimal delay, providing immediate visibility into system health and performance. The platform uses a powerful stream processing language based on Clojure, allowing users to filter, combine, and transform events flexibly and efficiently.

Riemann is ideal for enterprises managing large, dynamic infrastructures that require rapid detection and response to issues. Its low-latency event handling supports millions of events per second, enabling faster identification of outages and performance bottlenecks compared to traditional polling-based monitoring tools. The system integrates with popular tools like Graphite, Librato Metrics, and PagerDuty, facilitating seamless alerting and visualization workflows. Its configuration-as-code approach offers extensibility and adaptability for complex operational environments.

Key Capabilities

  • Real-time event stream processing
  • Low-latency infrastructure monitoring
  • Flexible Clojure-based configuration
  • Integration with Graphite and Librato Metrics
  • Multi-channel alerting including email and SMS

Integrations

GraphiteLibrato MetricsPagerDuty

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Quick Facts

riemann.io
CategoryObservability & Monitoring
SubcategoryInfrastructure Monitoring
PricingOpen Source
DeploymentOn-Premises, Open Source
Target SizeEnterprise