Need to add a tool for batch data import

[homealim2012]

If you import data directly through gremlin statements, it takes about half an hour to add 100000 points, which is far from meeting the performance requirements.Therefore, a fast data import tool is needed to import data into janusgraph, such as https://docs.nebula-graph.com.cn/3.2.0/20.appendix/write-tools/

[li-boxuan]

Have you tried using Spark? The last time I tried, I could use Spark to load 50 million edges to JanusGraph (C* as backend) in an hour.