Like Prometheus, but for logs.
The plugin-driven server agent for collecting & reporting metrics.
Beats - Lightweight shippers for Elasticsearch & Logstash
Golang implementation of Graphite/Carbon server with classic architecture: Agent -> Cache -> Persister
extract whitebox monitoring data from application logs for collection in a timeseries database
Logstash like, written in golang
Zero Allocation JSON Logger
A logging library for Go. Doesn't use the built in go log standard library, but instead offers a replacement.
Fast carbon relay+aggregator with admin interfaces for making changes online - production ready