ElasticSearch - Search done right
- 1. ELASTICSEARCH – SEARCH DONE RIGHT
- 2. Bart Wullems Practice Manager NCORE [email protected] https://bartwullems.blogspot.com
- 16. • ElasticSearch is a free and open source distributed inverted index created by shay banon. • Build on top of Apache Lucene • Lucene is a java-based full text search index implementation. • First public release version v0.4 in February 2010.
- 18. • Easy to scale (Distributed) • Everything is one JSON call away (RESTful API) • Unleashed power of Lucene under the hood • Excellent Query DSL • Support for advanced search features (Full Text, Facets, Fuzzy Search, Autocomplete, Highlights, ...) • Configurable and Extensible • Document Oriented • Schema free
- 21. JSON FIELD 1 MAPPING FIELD 2 FIELD ... NODE 1 P1 R1 R1 JSON JSON JSON
- 22. CLUSTER NODE 1 P1 NODE 2MASTER R2 R2R1 R1 P2 P2
- 29. • 2 official clients:
- 30. •High-level client that internally uses the low- level Elasticsearch.Net client •Maps requests and responses to strongly typed objects •Takes advantage of .NET features where they make sense (i.e., covariant collection result types, type and index inference) •Low-level client that provides a one-to-one mapping with the Elasticsearch REST API •No dependencies •Almost completely generated from the official REST API spec which makes it easy to keep up to date
- 35. • ElasticSearch brings “Google like” search into your reach • Enabled in .NET(Core) through NEST and ElasticSearch.NET • Search remains a complex beast • The difficulty is not in the search but in the indexing • Users love it!