How to set schema.default from 'none' to default

[dkumarkartik]

Describe the feature:
Hello Team,
We stricter our janusGraph schema by adding two configuration property to our schema e.g schema.constraints = true
and schema.default='none'. Now it's working as expected.
Can you please let us know how can we revert it back.

[porunov]

schema.default is a MASKABLE property meaning you can change it for your instance.
schema.constraints is a GLOBAL_OFFLINE property meaning that you must shutdown the whole JanusGraph cluster to change this configuration (keep in mind that you need to force close any zombie instances if you have any.
See how to close zombie instances: #3195 (comment)
See configuration properties mutability explanation: https://docs.janusgraph.org/configs/configuration-reference/

[porunov]

blank option uses either a MASKABLE value if it exists or a default value if it doesn't exist. In you case you already use none for MASKABLE property. Thus a blank option will mean none in you case.
To change it to default you need to provide a JanusGraph configuration schema.default=default.
Please, see available schema.default options: https://docs.janusgraph.org/configs/configuration-reference/#schema

P.S. I think schema.default configuration is a bad name for a configuration property and instead I would call it schema.maker of something else, but we use that name due to historical reasons. I guess we could make an alias for this property so that people wouldn't be confused.

[MahatiPV]

Hi @porunov! Thanks for your inputs.
We are not able to apply schema.default=default when doing it through ConfiguredGraphFactory. We see the below error -
Error in /docker-entrypoint-initdb.d/entrypoint.groovy at [12:     map.put("schema.default", default);] - startup failed:
groovysh_parse: 7: unexpected token: default @ line 7, column 31.
       map.put("schema.default", default);
Can you please suggest how it could be resolved?

[porunov]

It looks like Groovy error and not JanusGraph error. I didn't check that but your error says: groovysh_parse: 7: unexpected token: default @ line 7, column 31. and shows you map.put("schema.default", default);. Seems default in this case is treated as a variable (which doesn't exist in Groovy context) and not as String (which is expected for this configuration option).
Thus, I would assume encapsulating default into " will fix your problem.
Try using: schema.default="default".

[MahatiPV]

Thanks for the inputs @porunov!
So the behavior we see with these 2 configurations (schema.default=none and schema.constraints=true) in place is, schema is not being modified by the erroneous data but the erroneous data is still getting ingested into the graph.
Is there any way that the graph stops this ingestion completely and throws error?

[porunov]

I'm not sure I follow the issue to be fair. With schema.default=none data which violates data type is going to be rejected with the error. It will not be ingested into the graph, but instead you will receive an error. Please, checkout your schema. Maybe you already created wrong schema unintentionally by using schema.default=default previously