Features: Compliance to Apache TinkerPop 3, supporting Gremlin Schema Metadata Management, including VertexLabel, EdgeLabel, PropertyKey and IndexLabel Multi-type Indexes, supporting exact query, range query and complex conditons combination query Plug-in Backend Store Driver Framework, supporting RocksDB, Cassandra, ScyllaDB and MySQL now and easy to add other backend store driver if needed Integration with Hadoop/Spark