Elasticsearch is a search engine based on the Lucene library. It provides a distributed, multitenant-capable full-text search engine with an HTTP web interface and schema-free JSON documents. Elasticsearch is developed in Java and is dual-licensed under the source-available Server Side Public License and the Elastic license, while other parts[4] fall under the proprietary Elastic License. Official clients are available in Java, .NET (C#), PHP, Python, Apache Groovy, Ruby and many other languages.According to the DB-Engines ranking, Elasticsearch is the most popular enterprise search engine.

Elasticsearch is a distributed, open-source search and analytics engine built on Apache Lucene and developed in Java. Elasticsearch allows you to store, search, and analyze huge volumes of data quickly and in near real-time and give back answers in milliseconds.

Elastic and Google team up to bring a more native Elasticsearch Service experience on Google Cloud. Today, we announced an expansion of our partnership with Google, by deepening the integration between Elasticsearch Service on Google Cloud Platform in a more native way.

Why do you need it? Elasticsearch is fast. Because Elasticsearch is built on top of Lucene, it excels at full-text search. Elasticsearch is also a near real-time search platform, meaning the latency from the time a document is indexed until it becomes searchable is very short — typically one second

We will learn basic to advance topics of elk stack using python as programming language .