expert.db

The high-performance graph database.

Motivation

As part of my effort to build a semantic network, I need a persistent storage mechanism capable of containing large-scale graph data.

Architecture

• core - Basic services such as murmur hash, string functions, etc..
• petri - persistent prefix tree - the index file module
• dfile - data file engine - store and restore the actual graph data
• gstor - uses petri and dfile to store graph nodes and arcs
• xlog - graph transaction logger
• trax - transactional extensions - use xlog to ensure transactions are atomic
• socks - the expert.db socket server framework
• exdb - the actual expert.db server front-end