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From "gaurav gupta (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-19696) Wrong Documentation for Java Word Count Example
Date Wed, 22 Feb 2017 04:54:44 GMT
gaurav gupta created SPARK-19696:
------------------------------------

             Summary: Wrong Documentation for Java Word Count Example
                 Key: SPARK-19696
                 URL: https://issues.apache.org/jira/browse/SPARK-19696
             Project: Spark
          Issue Type: Bug
          Components: Documentation
    Affects Versions: 2.1.0
            Reporter: gaurav gupta


Java Word Count example of http://spark.apache.org/examples.html page is defined incorrectly


'''
JavaRDD<String> textFile = sc.textFile("hdfs://...");
JavaRDD<String> words = textFile.flatMap(s -> Arrays.asList(s.split(" ")).iterator())
                            .mapToPair(word -> new Tuple2<>(word, 1))
                            .reduceByKey((a, b) -> a + b);
counts.saveAsTextFile("hdfs://...");
''

It should be 

'''
JavaRDD<String> textFile = sc.textFile("hdfs://...");
JavaPairRDD<String, Integer> counts = textFile.flatMap(s -> Arrays.asList(s.split("
")).iterator())
                            .mapToPair(word -> new Tuple2<>(word, 1))
                            .reduceByKey((a, b) -> a + b);
counts.saveAsTextFile("hdfs://...");
''''



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