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jsonを含む Spark RDDを簡単にparseしてRDDにする。

Last updated at Posted at 2016-04-15
  • DataFrameを使って、case classを定義してなどでやるのをとりあえずおいておいて
  • 単純にjson->scalaのデータにする。
  • jupyter notebook上でやるなど
import scala.util.parsing.json.JSON

val jsonRdd = sc.textFile("なんか一行jsonになっているでかいデータ")

val parsedJsonRdd = rdd.map(JSON.parseFull(_))

parseJsonRdd.take(10).foreach(println)

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