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A distributed, scalable, lightning-fast graph database
NebulaGraph is an open-source graph database capable of hosting super large scale graphs
with dozens of billions of vertices (nodes) and trillions of edges, with milliseconds of latency.
It has a lot of users, including some famous and big companies of BAT, TMD,
and has been widely used for social media, recommendations, security, capital flows, AI, etc.
https://nebula-graph.io/cases
Compared with other graph database solutions, NebulaGraph has the following advantages:
- Symmetrically distributed
- Storage and computing separation
- Horizontal scalability
- Strong data consistency by RAFT protocol
- OpenCypher-compatible query language
- Role-based access control for higher level security
This repository hosts the source code of NebulaGraph versions before 2.0.0-alpha and after v2.5.x.
If you are looking to use the versions between v2.0.0 and v2.5.x, please head to NebulaGraph repo.
NebulaGraph 1.x is not actively maintained. Please move to NebulaGraph 2.x.
The data format, rpc protocols, clients, etc. are not compatible between NebulaGraph v1.x and v2.x, but we do offer upgrade guide.
Read the Getting started article for a quick start.
In case you encounter any problems playing around NebulaGraph, please reach out for help:
Contributions are warmly welcomed and greatly appreciated. And here are a few ways you can contribute:
- Start by some issues
- Submit Pull Requests to us. See how-to-contribute.
NebulaGraph enriches the CNCF Database Landscape.
NebulaGraph is under Apache 2.0 license, so you can freely download, modify, and deploy the source code to meet your needs.
You can also freely deploy NebulaGraph as a back-end service to support your SaaS deployment.
- Slack Channel
- Stack Overflow
- Twitter: @NebulaGraph
- LinkedIn Page
- Email: [email protected]
