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


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