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Search Engine Verified Architecture
Elasticsearch - Search Engine
A distributed, RESTful search and analytics engine capable of addressing a growing number of use cases. As the heart of the Elastic Stack, it centrally stores your data for lightning fast search.
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Core Technologies & Frameworks
JavaLuceneNoSQLSearch
Technical Architecture & Specifications
## Scale-Out Search
Elasticsearch makes it easy to explore massive amounts of unstructured data by providing a distributed wrapper around the incredibly powerful Apache Lucene library.
### How It Works
- **Inverted Indices**: Uses inverted indices to provide full-text search capabilities that are orders of magnitude faster than traditional SQL LIKE queries.
- **Sharding & Replication**: Data is automatically sharded across multiple nodes. If a node fails, Elasticsearch seamlessly rebalances replicas to ensure zero downtime.
- **Vector Search API**: Recently evolved to support dense vector fields and approximate k-NN search, making it a formidable backend for AI and RAG applications.
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