1. 什么是ElasticSearch?

ElasticSearch is a powerful open source search and analytics engine that makes data easy to explore.

可以簡單理解成索引加檢索的工具，當(dāng)然它功能多于此。
ElasticSearch分為服務(wù)端與客戶端，服務(wù)端提供REST API，客戶端使用REST API。

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http://www.cnblogs.com/Angle-Louis/archive/2015/01/12/4218678.html

NEST.net Client For Elasticsearch簡單應(yīng)用

http://blog.csdn.net/huwei2003/article/details/40980929

introducing elasticsearch.net and nest 1.0.0-beta1

http://www.elasticsearch.org/blog/introducing-elasticsearch-net-nest-1-0-0-beta1/

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ElasticSearch NEST