将Spark数据框写入ASCII JSON [英] Writing spark dataframe to ascii JSON

问题描述

我正在尝试将Spark数据帧编写为JSON文件；最终将其写到MapR JSON DB表中.

I am attempting to write a spark dataframe as JSON file; this will eventually be written out into MapR JSON DB table.

grp_small.toJSON.write.save("<path>")

这似乎以snappy.parquet格式写入JSON文件.如何强制将其写为可读的JSON(txt格式)?

This seems to write JSON file in snappy.parquet format. How do I force it to write it as a readable JSON (txt format) ?

推荐答案

您可以将数据帧写入json，其中每一行都以可读的json包含每一行.

You can write dataframe to json which contains each row as readable json in each line.

grp_small.write.json("path to output")

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