OpenSearch

OpenSearch

Distributed search and analytics engine with a RESTful API

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Last commit: 1d ago
Repo age: 5y old

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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