elastic stack

Elasticsearch is a source-available search engine. It is based on Apache Lucene (an open-source search engine) and provides a distributed, multitenant-capable full-text search engine with an HTTP web interface and schema-free JSON documents. Official clients are available in Java, .NET (C#), PHP, Python, Ruby and many other languages. According to the DB-Engines ranking, Elasticsearch is the most popular enterprise search engine.

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