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Lesson 8.1 Lab 8.1

Question asked by jadeyouth on Nov 21, 2016
Latest reply on Jan 26, 2017 by deborah

Lesson 8.1 Lab 8.1



Running a MapReduce job on the data



yarn jar /opt/mapr/hadoop/hadoop-2.7.0/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.0-mapr-1506.jar wordcount /h-input/h-output


Followng error occurs:


Usage: wordcount <in> [<in>...] <out>


Seems the previous command left something out of the "worldcount" command. I want to know the correct command.