@Vigneshraja Palaniraj​ I don't believe single_line_text_df.write.json works. I've tried all the str>>single_line_df>>file combinations. If there's no way around dbutils.fs limitation (unclear why that's low performance relative to python fileobject.write()) then I think the only other consideration is going str>>single_line_json_df that processes '\n' the same way spark.read.json('filepath') does