Elasticsearch

Elasticsearch is an open-source, scalable, distributed search and analytics engine based on Apache Lucene. Its distributed data storage allows for efficient data ingestion, search and analysis of large text data in near real time. Elasticsearch is typically installed as a multi-node cluster, wherein each node can store data and also process search requests.

Elasticsearch is a key component of the platform and its engine is used for powering search and visualization for several of the modules built on top of the platform.

For more details, refer to the Elasticsearch reference document