RethinkDB is a distributed document-oriented database developed for applications that need to respond when stored information changes. It stores JSON documents and offers a query model that can push updates to connected applications.
A distinguishing feature is its changefeed system. Instead of repeatedly requesting the latest records, an application can subscribe to a query and receive notifications when matching information changes. This is useful for collaborative software, dashboards, messaging applications and live monitoring systems.
RethinkDB uses the ReQL query language for retrieving and transforming documents. Queries can combine filtering, aggregation, joins and other operations while working directly with JSON data.
The database supports distributed operation, allowing data to be divided and replicated across multiple servers. This gives applications a way to distribute their storage workload while maintaining access to document collections.
RethinkDB also includes a web-based administration interface for querying data, examining tables and monitoring database activity. Its combination of document storage and changefeeds makes it particularly interesting for applications where timely updates are a central requirement.
This is free and open source software.
Key Features
- Real-time changefeeds for subscribed query results.
- ReQL query language for document manipulation.
- Flexible JSON document collections.
- Secondary and compound indexes.
- Document joins and relationship queries.
- Aggregation and map-reduce operations.
- Geospatial queries and spatial indexing.
- Document change notifications for connected applications.
- Data sharding across database servers.
- Replication and automatic failover.
- Browser-based administration and query exploration.
- Official drivers for several programming languages.
Website: github.com/rethinkdb/rethinkdb
Support:
Developer: RethinkDB community
License: GNU Affero General Public License v3.0
RethinkDB is written in C++. Learn C++ with our recommended free books and free tutorials.
Related Software
| Document-Oriented Databases | |
|---|---|
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| ArangoDB | Native multi-model database |
| eXist-db | Database management system entirely built on XML technology |
| RethinkDB | Scalable database built for realtime applications |
| BaseX | XML database engine |
| OrientDB | Document Database supporting ACID Transactions, SQL and Native Queries |
| Aerospike | Key-Value Store and high performance real-time NoSQL (flex-schema) database |
| RavenDB | Fully-transactional NoSQL ACID database |
| FerretDB | Database proxy that offers an open-source alternative to MongoDB |
| DocumentDB | MongoDB-compatible document database engine |
| Jackrabbit | Open-source content repository for Java |
| TerminusDB | Knowledge graph and document store |
| Kinto | Minimalist JSON storage service |
| CrateDB | Distributed SQL database management |
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