
OpenSearch
Distributed search and analytics engine with a RESTful API
OpenSearch is an Apache 2.0-licensed, community-driven distributed search and analytics engine designed for indexing and querying large volumes of data. It provides a RESTful API and is commonly used as the core search backend for applications and as a foundation for log and event analytics.
Key Features
- Distributed indexing and search for horizontal scalability and high availability
- RESTful API for indexing, querying, and cluster operations
- Full-text search and relevance scoring for unstructured and semi-structured data
- Aggregations for analytical queries over large datasets
- Extensible architecture with plugins for additional capabilities
Use Cases
- Powering application search for websites, product catalogs, and documentation
- Centralized log search and analytics for infrastructure and applications
- Building analytics experiences over event, text, and time-based datasets
Limitations and Considerations
- Operational complexity can be significant for large clusters (sizing, tuning, shard management)
- Query performance and cost depend heavily on index design and workload patterns
OpenSearch is a strong fit when you need scalable search and analytics with an open ecosystem and a well-known REST interface. It can serve as a primary search backend or as a core component in broader observability and analytics pipelines.
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