- [ ] [Prometheus](http://prometheus.io/) - monitoring system + TSDB - [ ] [collectd](https://collectd.org/) - metrics collector - [ ] [Umpire](https://github.com/heroku/umpire) - HTTP-based health checks for metrics - [x] [Cachet](https://github.com/cachethq/cachet) - status page - [x] [Tessera](http://urbanairship.github.io/tessera/) - metrics dashboard - [ ] [Graphite-API](https://github.com/brutasse/graphite-api) - barebones Graphite API layer - [ ] [Cabot](http://cabotapp.com/) - monitoring system - [x] [Statsite](https://github.com/armon/statsite) - metrics aggregation server