Small summery of ElasticSearch meetup
https://www.elastic.co/guide/en/elasticsearch/reference/current/_basic_concepts.html https://en.wikipedia.org/wiki/Document-oriented_database Configuration (a.k.a Design) matters a lot. Big performance impact to user. Design the configure based on the query pattern of users. Dual scoring model : Bool query && ?? Shingles , 类似有pairwise，把一个句子里面的单词(token)没连续两个分组，比如 Hello the beautiful world -> [Hello the], [the beautiful], [beautiful world] Kopf: https://github.com/lmenezes/elasticsearch-kopf, web admin page for elesticsearch