Re: Caused by: org.janusgraph.core.JanusGraphException: A JanusGraph graph with the same instance id [0a000439355-0b2b58ca5c222] is already open. Might required forced shutdown.
In the yaml file determining class Settings you use the channelizer key twice. If you use ConfigurationManagentGraph only the following line should be present:
Does that make any difference? Does stil the part ¨with one argument of class Settings,¨ show up in the ERROR message then?
Best wishes, Marc