Created
July 20, 2018 02:58
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| val path = "/public/yelp-dataset/yelp_review.csv" | |
| val conf = sc.hadoopConfiguration | |
| conf.set("textinputformat.record.delimiter", "\r") | |
| import org.apache.hadoop.mapreduce.lib.input.TextInputFormat | |
| import org.apache.hadoop.io.LongWritable | |
| import org.apache.hadoop.io.Text | |
| val yelpReview = sc.newAPIHadoopFile(path, classOf[TextInputFormat], classOf[LongWritable], classOf[Text], conf) | |
| yelpReview.count | |
| yelpReview.map(r => r._2.toString).take(10).foreach(println) | |
| yelpReview.map(r => (r._2.toString.split("\",\"").size, 1)).reduceByKey(_ + _).collect.foreach(println) |
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