Dgraph: Synchronously Replicated, Transactional and Distributed Graph Database

Dgraph is a distributed graph database which provides horizontal scalability, distributed cluster-wide ACID transactions, low-latency arbitrary-depth joins, synchronous replication, high availability and crash resilience. Aimed at real-time transactional workloads, Dgraph shards and stores data in a way to optimize joins and traversals, while still providing data retrieval and aggregation. Dgraph’s unique take is to provide low-latency arbitrary-depth joins in a constant number of network calls (typically, just one network call) that would be required to execute a single join, irrespective of the size of the cluster or the size of the result set.