Is this tool suitable for importing big data to a Linux cluster？ And there are some errors when I using this tool.

[ouzensang]

Hi, I am a new user of janusgraph and I deploy janusgraph on a Linux cluster and my backend is Cassendra and index is es. I find this tool is suitable for my config. I want to use it to import my data, but I met some errors.

1. I want to know if this tool supports a cluster. If so, could I just change the properties file?
2. When I load my data and test data in original resources file, I alwaya met the following errors, I have no idea about it and how to solve it.
   
3. If I load same data, could it cover previous data? Or is there some method to empty the data in janusgraph before use this tool to import data.

I'm looking forward to your early reply! Thank you :)

And

[dengziming]

this is a strange err, there seems to be some problem with your cassandra . you should test cassandra by use the janusgraph API or gremlin.sh first to ensure your database is operating normally

[ouzensang]

I ckecked my cassandra and config, it seems normal. I redeployed my janusgraph to match their version, janusgraph is 0.2.2 and cassandra is 2.2.14. But there is still the same error.

It seems like the error happened at line 120 or 122. Do you have any idea about this error?

[dengziming]

the exception is "couldn't local index" when invoking mgmt.retriveSchemaByName,
this means it fails when querying Cassandra for the propertyId by propertyName.
so I think you can use gremlin.sh to query the Janus to get some clue

[ouzensang]

Thanks for your suggeation!