As a robust, scalable and high-performance database, Neo4j is suitable for lightweight projects or full enterprise deployment.

It features:

Proper ACID behavior is the foundation of data reliability. Neo4j enforces that all mutating operations occur within a transaction, guaranteeing consistent data. This robustness extends from single instance embedded graphs to multi-server high availability installations. For details, see Chapter 3, Transaction management.

Reliable graph storage can easily be added to any application. A property graph can scale in size and complexity as the application evolves, with little impact on performance. Whether starting new development, or augmenting existing functionality, Neo4j is only limited by physical hardware.

A single server instance can handle a graph of billions of nodes and relationships. When data throughput is insufficient, the graph database can be distributed among multiple servers in a high availability configuration. See Chapter 5, High Availability to learn more.

The graph database storage shines when storing richly-connected data. Querying is performed through traversals, which can perform millions of "joins" per second.