elastic

https://docs.google.com/presentation/d/19_axpkStgFsaU7DMPfJHbNtAXTSkNWy2OOm26VofjLk/edit#slide=id.p

https://www.elastic.co/guide/en/elasticsearch/guide/current/index.html

https://www.elastic.co/guide/en/elasticsearch/reference/current/index.html

http://thedudeabides.com/

http://exploringelasticsearch.com/

https://blog.hipchat.com/2014/06/24/elasticsearch-at-hipchat-10x-faster-queries/

https://blog.hipchat.com/2013/08/12/hipchat-search-now-powered-by-elasticsearch/

http://highscalability.com/blog/2014/1/6/how-hipchat-stores-and-indexes-billions-of-messages-using-el.html

https://elasticsearch-benchmarks.elastic.co/

https://grey-boundary.io/field-notes-elasticsearch-at-petabyte-scale-on-aws/