I read some conceptual confusion, so let me try:

• a single query is handled by a single janusgraph instance (In this case JanusGraph Server)
• you can handle many queries from many nodejs clients in parallel by configuring multiple JanusGraph Servers and make these accessible via a load balancer

• you can introduce parallel processing of a single query by using an OLAP query and have the query processed by a distributed processing engine like Apache Spark, see https://docs.janusgraph.org/advanced-topics/hadoop/

Best wishes,   Marc

We are also facing similar issue .. Could you please direct us how do we handle Janus cluster using node js 

Hello!
I'm new to JanusGraph and implemented "single janus server- single nodejs client" setup successfully. Able to create multiple dynamic graphs within the same janusServer instance (if anyone need helps here, I'm happy to help) with Google BigTable as storage backend.

The thing I'm stuck with is this clustering of Janus graph. The idea is to scale up the current architecture with multiple JanusGraph servers to speed up the execution.
I've three google VM instances where I've have configured the same JanusGraph server setup. Now, how can I distribute the data to these three JanusGraph Servers.
I'm using "gremlin" npm module, but it doesn't have the option to connect with three servers at the same time. 

Its been a week I'm looking for solutions, but not able to find any. 
Is there anything I'm missing? If there's any better approach? Or any solution to my problem?

Any help would be Great! Thank You!
Happy Coding!