July 2017
Intermediate to advanced
796 pages
18h 55m
English
Content preview from Scala and Spark for Big Data Analytics
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Reading and manipulating raw text files
You can read a raw text data file using the textFile() method. Suppose you have the logs of some purchase:
number\tproduct_name\ttransaction_id\twebsite\tprice\tdate0\tjeans\t30160906182001\tebay.com\t100\t12-02-20161\tcamera\t70151231120504\tamazon.com\t450\t09-08-20172\tlaptop\t90151231120504\tebay.ie\t1500\t07--5-20163\tbook\t80151231120506\tpackt.com\t45\t03-12-20164\tdrone\t8876531120508\talibaba.com\t120\t01-05-2017
Now reading and creating RDD is pretty straightforward using the textFile() method as follows:
myRDD = spark.sparkContext.textFile("sample_raw_file.txt")$cd myRDD$ cat part-00000 number\tproduct_name\ttransaction_id\twebsite\tprice\tdate 0\tjeans\t30160906182001\tebay.com\t100\t12-02-20161\tcamera\t70151231120504\tamazon.com\t450\t09-08-2017 ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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