Riemann – A network monitoring system
Evaluated it, and ultimately rejected it for a couple of reasons:<p>- You must pick up Clojure to understand and configure Riemann (we're not a Clojure shop, so this is a non-trivial requirement)<p>- Config file isn't a config file, it's an executed bit of Clojure code<p>- Riemann is not a replacement for an alerting mechanism, it's another signal for alerting mechanisms (though since it's Clojure and the configuration file is a Clojure script, you can absolutely hack it into becoming an alerting system)<p>- Riemann is not a replacement for a trend graphing mechanism.<p>- There are other solutions which can be piped together to get the 80% of the functionality we wanted from Riemann (Graphite + Skyline) in much less invested time<p>Skyline link: <a href="https://github.com/etsy/skyline" rel="nofollow">https://github.com/etsy/skyline</a>