Apache Solr
The search server on Lucene that came before Elasticsearch, with faceting, SolrCloud for clusters and dense vector search. See how developers rate it month by month on DTDb.
- Category
- database engine
- Developer
- Apache Software Foundation
- Created by
- Yonik Seeley
- First release
- 2006
- License
- Apache-2.0
- Open source
- Yes
- Pricing
- Free
- Website
- https://solr.apache.org
- Written in
- Java
- Data model
- Search, Document, Vector
- Storage layout
- Column-oriented
- Workload
- Search
- Analytics architecture
- Not an analytics platform
- Query language
- Lucene syntax, JSON Query DSL, SQL
- ACID transactions
- No
- Schema
- Flexible
- Deployment
- Server, Distributed cluster
- Scaling
- Sharding
- Create, read, update, delete
- Create: fast (High throughput indexing); Read: fast (Fast full-text and faceted queries); Update: slow (Atomic updates still reindex the whole document); Delete: moderate (Marked deleted, removed on segment merge)