JSON could be a quite common way to store information. however JSON will get untidy and parsing it will get tough. Here are some samples of parsing nested data structures in JSON Spark DataFrames (examples here finished Spark one.6.0). Sample JSON File: { “user”: “gT35Hhhre9m”, “dates”: [“2016-01-29”, “2016-01-28”], “status”: “OK”, “reason”: “some reason”, “content”: [{ “foo”: 123, “bar”: “val1″...