http://www.zusaar.com/event/1377006
http://blog.stanaka.org/entry/2013/12/01/092642
https://speakerdeck.com/smly/influxdb-and-leveldb-inside-out
http://blog.kenjiskywalker.org/blog/2013/12/01/monitoringcasual-kyoto/ https://gist.github.com/kenjiskywalker/7703670
http://www.slideshare.net/tagomoris/monitoring-casual-kyoto20131130