- by Full Stack Tutorials Team
- May 12, 2018
Elasticsearch Interview Questions
Elasticsearch is a search engine based on Apache Lucene that supports full-text
Elasticsearch can be used to search different kinds of documents that provide scalable search, multi-tenancy, and real-time search.
Elasticsearch is developed in Java (Developed By - Shay Banon) and is released as open source under the terms of the Apache License.
ElasticSearch uses apache lucene query language, which is called Query DSL.
Elasticsearch uses a structure called an inverted index, which is designed to allow very fast full-text searches. An inverted index consists of a list of all the unique words that appear in any document, and for each word, a list of the documents in which it appears.
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In simple word - Tokenizers break down a string into stream of tokens.
Yes, Elasticsearch can have a schema.
Following are the advantages of Elasticsearch:
- Elasticsearch is compatible on any platform.
- Elasticsearch cluster is distributed, scalable and most important easy to integrate.
- Elasticsearch REST uses JSON objects, works perfectly with different programming languages.
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