1 回答执行了hadoop jar word_count_class/wordcount.jar WordCount input_wordcount output_wordcount报错误了

1 回答运行hadoop jar WordCount.jar WordCount input output报错

1 回答指令报错javac -classpath /usr/local/src/hadoop-1.2.1/hadoop-core-1.2.1.jar: /usr/local/src/hadoop-1.2.1/lib/commons-cli-1.2.jar -d word_count_class/ WordCount.java

3 回答老师 安装完 hadoop，运行 hadoop namenode -format 报错咋那么

1 回答怎么没有提交wordCount.jar到hadoop那一步？