StatsD is a front-end proxy for the Graphite/Carbon metrics server, originally written by Etsy’s Erik Kastner. It is based on ideas from Flickr and this post by Cal Henderson: Counting and Timing. The server was written in Node, though there have been implementations in other languages since then.
A network daemon that runs on the Node.js platform and listens for statistics, like counters and timers, sent over UDP or TCP and sends aggregates to one or more pluggable backend services (e.g., Graphite).
We (Etsy) blogged about how it works and why we created it.
Continue reading etsy/statsd – Network & IT Systems Monitoring
GoAccess is an open source real-time Apache log analyzer and interactive viewer that runs in a terminal in *nix systems. It provides fast and valuable HTTP statistics for system administrators that require a visual server report on the fly.
All credits go to http://www.ubuntugeek.com/goaccess-visual-apachenginx-log-analyzer.html
Continue reading GoAccess – analyzer and interactive viewer of apache or nginx logs