MapReduce Wordcount [하둡 동영상 강의]

hadoop execution

./bin/hadoop namenode -format
./bin/start-all.sh
$ jps
./bin/hadoop fs -ls
./bin/hadoop fs -mkdir jacob
./bin/hadoop fs -put news.text jacob/
./bin/hadoop jar hadoop-examples-1.0.4.jar wordcount jacob/news.text jacob/newsoutput
./bin/hadoop fs -cat jacob/newsoutput/part-r-00000