MapReduce编程小案例.3rd—对网站访问总次数全排序

最新推荐文章于 2025-04-18 17:38:40 发布

RobertDowneyLm

最新推荐文章于 2025-04-18 17:38:40 发布

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分类专栏：学习笔记干货教程文章标签： MapReduce

本文链接：https://blog.youkuaiyun.com/RobertDowneyLm/article/details/80316106

本文介绍了一个MapReduce编程案例，通过两个MapReduce任务实现对网站访问总次数的全排序。首先创建PageCountStep1类处理数据，接着使用PageCount类封装网站信息并实现WritableComparable接口以满足MapReduce传输需求。最后，通过PageCountStep2类完成排序的第二步操作。

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MapReduce编程小案例.3rd—对网站访问总次数全排序

利用MapReduce处理一个小案例，如下是一批网站的访问次数信息：

2018/05/11 qq.com/a
2018/05/11 qq.com/bx
2018/05/11 qq.com/by
2018/05/11 qq.com/by3
2018/05/11 qq.com/news
2018/05/11 sina.com/news/socail
2018/05/11 163.com/ac
2018/05/11 sina.com/news/socail
2018/05/11 163.com/sport
2018/05/11 163.com/ac
2018/05/11 sina.com/play
2018/05/11 163.com/sport
2018/05/11 163.com/ac
2018/05/11 sina.com/movie
2018/05/11 sina.com/play
2018/05/11 sina.com/movie
2018/05/11 163.com/sport
2018/05/11 sina.com/movie
2018/05/11 163.com/ac
2018/05/11 163.com/ac
2018/05/11 163.com/acc
2018/05/11 qq.com/by
2018/05/11 qq.com/by3
2018/05/11 qq.com/news
2018/05/11 163.com/sport
2018/05/11 sina.com/news/socail
2018/05/11 163.com/sport
2018/05/11 sina.com/movie
2018/05/11 sina.com/news/socail
2018/05/11 sina.com/movie
2018/05/11 qq.com/news
2018/05/11 163.com/bb
2018/05/11 163.com/cc
2018/05/11 sina.com/lady/
2018/05/11 163.com/cc
2018/05/11 qq.com/news
2018/05/11 qq.com/by
2018/05/11 qq.com/by3
2018/05/11 sina.com/lady/
2018/05/11 qq.com/by3
2018/05/11 sina.com/lady/
2018/05/11 qq.com/by3
2018/05/11 qq.com/news
2018/05/11 qq.com/by3
2018/05/11 163.com/sport
2018/05/11 163.com/sport
2018/05/11 sina.com/news/socail
2018/05/11 sina.com/lady/
2018/05/11 sina.com/play
2018/05/11 sina.com/movie
2018/05/11 sina.com/music
2018/05/11 sina.com/sport
2018/05/11 sina.com/sport
2018/05/11 163.com/sport
2018/05/11 sina.com/news/socail
2018/05/11 sohu.com/lady/
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