Elasticsearch

Elasticsearch is a distributed search and analytics engine built on Apache Lucene. It is the heart of the ELK Stack (Elastic, Logstash, Kibana) and a leading Vector Database for AI.

When to Use

• Enterprise Full-Text Search: Autocomplete, typo tolerance, synonyms, and relevancy ranking across millions of unstructured documents.
• Log Analytics & SIEM (ELK Stack): Ingesting, indexing, and visualizing server logs, metrics, and security audit trails.
• Dense Vector Semantic Search: Storing machine-learning embeddings and performing hybrid semantic + lexical search.
• Real-Time Analytical Aggregations: Computing multi-level nested aggregations, histograms, and geolocation bounding boxes.

Quick Start