Open-source alternatives to Seyren

StatsD is a network-based metrics daemon and aggregator that collects application performance data, such as counters and timers, for periodic delivery to backend services. It functions as system monitoring middleware, receiving telemetry via UDP to minimize performance overhead on monitored services. The system acts as a distributed metrics router, employing consistent hashing to distribute data points across clusters and ensure aggregation accuracy. It includes cluster health monitoring to track node availability and automatically recalculate routing paths when services go offline. The proj

Fluentd is a unified logging layer and distributed event router that collects, parses, and routes log data from diverse sources to various storage backends. It functions as a log forwarding agent and pipeline orchestrator, transforming raw unstructured log strings into formatted objects using structured log parsing. The project utilizes a plugin-based pipeline architecture to route data through independent input, filter, and output stages. It differentiates itself through tag-based event routing, which uses regular expression patterns to direct specific data streams to their intended destinat

A damn-sexy, open source real-time dashboard builder for IOT and other web mashups. A free open-source alternative to Geckoboard.

Loki is a horizontally scalable, highly available log aggregation engine designed to store and query massive volumes of unstructured log data. It functions as a distributed observability platform that correlates logs, metrics, and traces to provide comprehensive visibility into the health and performance of complex infrastructure. The system distinguishes itself through a distributed query execution model that processes large datasets in parallel across cluster nodes. It utilizes label-based stream indexing and a distributed index to map log data to specific chunks, enabling rapid retrieval w

Alerta monitoring system

LibreNMS is an SNMP network monitoring system and IT infrastructure management suite. It serves as an automated network discovery tool and infrastructure dashboard, enabling the identification and monitoring of network hardware and operating systems. The system differentiates itself through a rule-based alerting engine and a comprehensive IT incident workflow integration. It supports complex alert routing, including escalation sequences and direct ticket generation for project management and service desk platforms. Its observability capabilities cover multi-vendor hardware oversight, applica

High-performance log ingestion and ETL engine

The exceptionally handsome dashboard framework in Ruby and Coffeescript.