Hadoop案例

Hadoop 示例应用与配置

最新推荐文章于 2025-09-10 15:58:35 发布

转载最新推荐文章于 2025-09-10 15:58:35 发布 · 68 阅读

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原文链接：http://www.cnblogs.com/bockpecehhe/p/9081070.html

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#大数据

当出现域名解析错误，修改/etc/hosts文件

ifconfig hostname 192.168.10.235 hadoop001

案例一： grep

mkdir input
cp etc/hadoop-*.xml input

hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.2.jar grep input output 'dfs[a-z.]+' cd output cat part-r-0000

案例一： wordcount

mkdir cinput
cd cinput
touch word
        hadoop 
        hadoop liyu
        hadoop mark
        hello mark
hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.2.jar wordcount cinput coutput

转载于:https://www.cnblogs.com/bockpecehhe/p/9081070.html