通过hadoop自带的demo运行单词统计(测试)
在家目录下操作:
1)mkdir input2)cd intput3)echo “hello word” > file1.txt4)echo “hello hadoop” > file2.txt5)echo “hello mapreduce” >> file2.txt6) more file2.txt7) hadoop fs -mkdir /wc_input8) hadoop fs -ls /9) hadoop fs -put ~/input/fi* /wc_input10)hadoop fs -ls /wc_input11) hadoop jar /soft/wang/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.3.jar wordcount /wc_input /output(输出目录不能提前存在)12)hadoop fs -ls /output13)hadoop fs -text /output/part-r-00000
执行结果截图: