This is my own hadoop tests.
First Test with word count done.
jar包 mkdir FirstJar javac -classpath ~/hadoop/hadoop-0.20.2-core.jar -d FirstJar WordCount.java jar -cvf wordcount.jar -C FirstJar/ .
运行 hadoop/bin/hadoop dfs -mkdir input hadoop/bin/hadoop dfs -put /filepath/files* input
hadoop/bin/hadoop jar wordcount.jar WordCount input output