Elasticsearch is a distributed search and analytics engine designed for handling large volumes of data in real-time. It is built on Apache Lucene and provides powerful full-text search capabilities, making it widely used for log and event data analysis, application search, and business intelligence.
Key Features:
- Distributed and Scalable: Can handle petabytes of data across multiple nodes.
- Full-Text Search: Supports advanced search queries, including fuzzy matching, relevance scoring, and autocomplete.
- Real-Time Indexing and Searching: Allows immediate access to newly added data.
- RESTful API: Interacts with JSON-based queries over HTTP.
- Aggregation and Analytics: Enables powerful data analysis using metrics and bucket aggregations.
- Integration with the ELK Stack: Works seamlessly with Logstash (data processing) and Kibana (visualization).
Elasticsearch is commonly used for logging and monitoring (e.g., analyzing server logs), e-commerce product searches, and security analytics.
