hadoop 和 hdfs 命令用法hadoop:Usage: hadoop [--config confdir] [COMMAND | CLASSNAME] CLASSNAME run the class named CLASSNAME or where COMMAND is one of: fs run a gen...【阅读全文】
1.启动hadoop, start-all.sh 启动hadoop2. copy local example data to hdfs bin/hadoop jar contrib/streaming/hadoop-*streaming*.jar -file /home/hduser/reducer.py -reducer /home/hduser/reducer.py bin/hadoop dfs -cat /user/hduser/gutenberg-output/part-00000【阅读全文】