AI 助理
备案控制台
开发者社区 大数据 文章 正文

MapReduce【数据清洗】

2023-12-06 89
版权
版权声明：
本文内容由阿里云实名注册用户自发贡献，版权归原作者所有，阿里云开发者社区不拥有其著作权，亦不承担相应法律责任。具体规则请查看《 阿里云开发者社区用户服务协议》和 《阿里云开发者社区知识产权保护指引》。如果您发现本社区中有涉嫌抄袭的内容，填写 侵权投诉表单进行举报，一经查实，本社区将立刻删除涉嫌侵权内容。
本文涉及的产品
云数据库 MongoDB，独享型 2核8GB
推荐场景：
构建全方位客户视图
云解析 DNS，旗舰版 1个月
全局流量管理 GTM，标准版 1个月
简介： MapReduce【数据清洗】

ETL

在运行核心业务MapReduce程序时，往往要进行数据清洗，清理掉不符合要求的数据。清理的过程往往只需要运行Mapper程序，不需要运行Reducer程序。

需求

去除日志中字段个数<=11的日志（用空格分隔字段）

输入数据

194.237.142.21 - - [18/Sep/2013:06:49:18 +0000] “GET /wp-content/uploads/2013/07/rstudio-git3.png HTTP/1.1” 304 0 “-” “Mozilla/4.0 (compatible;)”
183.49.46.228 - - [18/Sep/2013:06:49:23 +0000] “-” 400 0 “-” “-”
163.177.71.12 - - [18/Sep/2013:06:49:33 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
163.177.71.12 - - [18/Sep/2013:06:49:36 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
101.226.68.137 - - [18/Sep/2013:06:49:42 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
101.226.68.137 - - [18/Sep/2013:06:49:45 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
60.208.6.156 - - [18/Sep/2013:06:49:48 +0000] “GET /wp-content/uploads/2013/07/rcassandra.png HTTP/1.0” 200 185524 “http://cos.name/category/software/packages/” “Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36”
222.68.172.190 - - [18/Sep/2013:06:49:57 +0000] “GET /images/my.jpg HTTP/1.1” 200 19939 “http://www.angularjs.cn/A00n” “Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36”
222.68.172.190 - - [18/Sep/2013:06:50:08 +0000] “-” 400 0 “-” “-”
183.195.232.138 - - [18/Sep/2013:06:50:16 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
183.195.232.138 - - [18/Sep/2013:06:50:16 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
66.249.66.84 - - [18/Sep/2013:06:50:28 +0000] “GET /page/6/ HTTP/1.1” 200 27777 “-” “Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)”
221.130.41.168 - - [18/Sep/2013:06:50:37 +0000] “GET /feed/ HTTP/1.1” 304 0 “-” “Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36”
157.55.35.40 - - [18/Sep/2013:06:51:13 +0000] “GET /robots.txt HTTP/1.1” 200 150 “-” “Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)”
50.116.27.194 - - [18/Sep/2013:06:51:35 +0000] “POST /wp-cron.php?doing_wp_cron=1379487095.2510800361633300781250 HTTP/1.0” 200 0 “-” “WordPress/3.6; http://blog.fens.me”
58.215.204.118 - - [18/Sep/2013:06:51:35 +0000] “GET /nodejs-socketio-chat/ HTTP/1.1” 200 10818 “http://www.google.com/url?sa=t&rct=j&q=nodejs%20%E5%BC%82%E6%AD%A5%E5%B9%BF%E6%92%AD&source=web&cd=1&cad=rja&ved=0CCgQFjAA&url=%68%74%74%70%3a%2f%2f%62%6c%6f%67%2e%66%65%6e%73%2e%6d%65%2f%6e%6f%64%65%6a%73%2d%73%6f%63%6b%65%74%69%6f%2d%63%68%61%74%2f&ei=rko5UrylAefOiAe7_IGQBw&usg=AFQjCNG6YWoZsJ_bSj8kTnMHcH51hYQkAA&bvm=bv.52288139,d.aGc” “Mozilla/5.0 (Windows NT 5.1; rv:23.0) Gecko/20100101 Firefox/23.0”
58.215.204.118 - - [18/Sep/2013:06:51:36 +0000] “GET /wp-includes/js/jquery/jquery-migrate.min.js?ver=1.2.1 HTTP/1.1” 304 0 “http://blog.fens.me/nodejs-socketio-chat/” “Mozilla/5.0 (Windows NT 5.1; rv:23.0) Gecko/20100101 Firefox/23.0”
58.215.204.118 - - [18/Sep/2013:06:51:35 +0000] “GET /wp-includes/js/jquery/jquery.js?ver=1.10.2 HTTP/1.1” 304 0 “http://blog.fens.me/nodejs-socketio-chat/” “Mozilla/5.0 (Windows NT 5.1; rv:23.0) Gecko/20100101 Firefox/23.0”
58.215.204.118 - - [18/Sep/2013:06:51:36 +0000] “GET /wp-includes/js/comment-reply.min.js?ver=3.6 HTTP/1.1” 304 0 “http://blog.fens.me/nodejs-socketio-chat/” “Mozilla/5.0 (Windows NT 5.1; rv:23.0) Gecko/20100101 Firefox/23.0”
58.215.204.118 - - [18/Sep/2013:06:51:36 +0000] “GET /wp-content/uploads/2013/08/chat.png HTTP/1.1” 200 48968 “http://blog.fens.me/nodejs-socketio-chat/” “Mozilla/5.0 (Windows NT 5.1; rv:23.0) Gecko/20100101 Firefox/23.0”
58.215.204.118 - - [18/Sep/2013:06:51:36 +0000] “GET /wp-content/uploads/2013/08/chat2.png HTTP/1.1” 200 59852 “http://blog.fens.me/nodejs-socketio-chat/” “Mozilla/5.0 (Windows NT 5.1; rv:23.0) Gecko/20100101 Firefox/23.0”
58.215.204.118 - - [18/Sep/2013:06:51:37 +0000] “GET /wp-content/uploads/2013/08/socketio.png HTTP/1.1” 200 80493 “http://blog.fens.me/nodejs-socketio-chat/” “Mozilla/5.0 (Windows NT 5.1; rv:23.0) Gecko/20100101 Firefox/23.0”
58.248.178.212 - - [18/Sep/2013:06:51:37 +0000] “GET /nodejs-grunt-intro/ HTTP/1.1” 200 51770 “http://blog.fens.me/series-nodejs/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; MDDR; InfoPath.2; .NET4.0C)”
58.248.178.212 - - [18/Sep/2013:06:51:40 +0000] “GET /wp-includes/js/jquery/jquery-migrate.min.js?ver=1.2.1 HTTP/1.1” 200 7200 “http://blog.fens.me/nodejs-grunt-intro/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; MDDR; InfoPath.2; .NET4.0C)”
58.248.178.212 - - [18/Sep/2013:06:51:40 +0000] “GET /wp-includes/js/comment-reply.min.js?ver=3.6 HTTP/1.1” 200 786 “http://blog.fens.me/nodejs-grunt-intro/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; MDDR; InfoPath.2; .NET4.0C)”
58.248.178.212 - - [18/Sep/2013:06:51:40 +0000] “GET /wp-includes/js/jquery/jquery.js?ver=1.10.2 HTTP/1.1” 200 45307 “http://blog.fens.me/nodejs-grunt-intro/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; MDDR; InfoPath.2; .NET4.0C)”
58.248.178.212 - - [18/Sep/2013:06:51:40 +0000] “GET /wp-includes/js/jquery/jquery.js?ver=1.10.2 HTTP/1.1” 200 93128 “http://blog.fens.me/nodejs-grunt-intro/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; MDDR; InfoPath.2; .NET4.0C)”
58.248.178.212 - - [18/Sep/2013:06:51:40 +0000] “GET /wp-includes/js/comment-reply.min.js?ver=3.6 HTTP/1.1” 200 786 “http://blog.fens.me/nodejs-grunt-intro/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; MDDR; InfoPath.2; .NET4.0C)”
58.215.204.118 - - [18/Sep/2013:06:51:41 +0000] “-” 400 0 “-” “-”
58.215.204.118 - - [18/Sep/2013:06:51:41 +0000] “-” 400 0 “-” “-”
58.215.204.118 - - [18/Sep/2013:06:51:41 +0000] “-” 400 0 “-” “-”
157.55.35.40 - - [18/Sep/2013:06:51:43 +0000] “GET /rhadoop-java-basic/ HTTP/1.1” 200 26780 “-” “Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)”
58.248.178.212 - - [18/Sep/2013:06:51:43 +0000] “GET /wp-includes/js/jquery/jquery-migrate.min.js?ver=1.2.1 HTTP/1.1” 200 7200 “http://blog.fens.me/nodejs-grunt-intro/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; MDDR; InfoPath.2; .NET4.0C)”
58.248.178.212 - - [18/Sep/2013:06:51:45 +0000] “GET /wp-content/uploads/2013/08/grunt.png HTTP/1.1” 200 199040 “http://blog.fens.me/nodejs-grunt-intro/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; MDDR; InfoPath.2; .NET4.0C)”
58.215.204.118 - - [18/Sep/2013:06:52:26 +0000] “GET /nodejs-async/ HTTP/1.1” 200 12647 “http://blog.fens.me/nodejs-socketio-chat/” “Mozilla/5.0 (Windows NT 5.1; rv:23.0) Gecko/20100101 Firefox/23.0”
58.215.204.118 - - [18/Sep/2013:06:52:27 +0000] “GET /wp-includes/js/jquery/jquery.js?ver=1.10.2 HTTP/1.1” 304 0 “http://blog.fens.me/nodejs-async/” “Mozilla/5.0 (Windows NT 5.1; rv:23.0) Gecko/20100101 Firefox/23.0”
58.215.204.118 - - [18/Sep/2013:06:52:27 +0000] “GET /wp-includes/js/jquery/jquery-migrate.min.js?ver=1.2.1 HTTP/1.1” 304 0 “http://blog.fens.me/nodejs-async/” “Mozilla/5.0 (Windows NT 5.1; rv:23.0) Gecko/20100101 Firefox/23.0”
58.215.204.118 - - [18/Sep/2013:06:52:27 +0000] “GET /wp-includes/js/comment-reply.min.js?ver=3.6 HTTP/1.1” 304 0 “http://blog.fens.me/nodejs-async/” “Mozilla/5.0 (Windows NT 5.1; rv:23.0) Gecko/20100101 Firefox/23.0”
163.177.71.12 - - [18/Sep/2013:06:52:29 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
58.215.204.118 - - [18/Sep/2013:06:52:29 +0000] “GET /nodejs-async/?cf_action=sync_comments&post_id=2357 HTTP/1.1” 200 48 “http://blog.fens.me/nodejs-async/” “Mozilla/5.0 (Windows NT 5.1; rv:23.0) Gecko/20100101 Firefox/23.0”
163.177.71.12 - - [18/Sep/2013:06:52:32 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
58.215.204.118 - - [18/Sep/2013:06:52:32 +0000] “-” 400 0 “-” “-”
58.215.204.118 - - [18/Sep/2013:06:52:33 +0000] “-” 400 0 “-” “-”
58.215.204.118 - - [18/Sep/2013:06:52:33 +0000] “-” 400 0 “-” “-”
101.226.68.137 - - [18/Sep/2013:06:52:36 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
101.226.68.137 - - [18/Sep/2013:06:52:39 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
183.195.232.138 - - [18/Sep/2013:06:53:12 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
183.195.232.138 - - [18/Sep/2013:06:53:12 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
222.66.59.174 - - [18/Sep/2013:06:53:30 +0000] “GET /images/my.jpg HTTP/1.1” 200 19939 “http://www.angularjs.cn/A00n” “Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20100101 Firefox/23.0”
222.66.59.174 - - [18/Sep/2013:06:53:36 +0000] “-” 400 0 “-” “-”
216.24.201.254 - - [18/Sep/2013:06:53:57 +0000] “GET /feed/ HTTP/1.1” 200 33867 “-” “Mozilla/5.0 (Ubuntu; X11; Linux x86_64; rv:8.0) Gecko/20100101 Firefox/8.0”
58.215.204.118 - - [18/Sep/2013:06:54:48 +0000] “GET /r-json-rjson/ HTTP/1.1” 200 11500 “http://blog.fens.me/nodejs-async/” “Mozilla/5.0 (Windows NT 5.1; rv:23.0) Gecko/20100101 Firefox/23.0”
61.135.216.105 - - [18/Sep/2013:06:54:51 +0000] “GET /comments/feed/ HTTP/1.1” 304 0 “-” “Mozilla/5.0 (compatible;YoudaoFeedFetcher/1.0;http://www.youdao.com/help/reader/faq/topic006/;1 subscribers;)”
222.66.59.174 - - [18/Sep/2013:06:55:19 +0000] “-” 400 0 “-” “-”
163.177.71.12 - - [18/Sep/2013:06:55:24 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
163.177.71.12 - - [18/Sep/2013:06:55:27 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
101.226.68.137 - - [18/Sep/2013:06:55:30 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
101.226.68.137 - - [18/Sep/2013:06:55:33 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
222.66.59.174 - - [18/Sep/2013:06:55:51 +0000] “GET /images/my.jpg HTTP/1.1” 200 19939 “http://www.angularjs.cn/” “Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)”
183.195.232.138 - - [18/Sep/2013:06:56:07 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
183.195.232.138 - - [18/Sep/2013:06:56:07 +0000] “HEAD / HTTP/1.1” 200 20 “-” “DNSPod-Monitor/1.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /vps-ip-dns/ HTTP/1.1” 200 11403 “http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=6&cad=rja&ved=0CHIQFjAF&url=http%3A%2F%2Fblog.fens.me%2Fvps-ip-dns%2F&ei=j045UrP5AYX22AXsg4G4DQ&usg=AFQjCNGsJfLMNZnwWXNpTSUl6SOEzfF6tg&sig2=YY1oxEybUL7wx3IrVIMfHA&bvm=bv.52288139,d.b2I” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/themes/silesia/style.css HTTP/1.1” 200 7554 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-includes/js/jquery/jquery.js?ver=1.10.2 HTTP/1.1” 200 32851 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-includes/js/jquery/jquery-migrate.min.js?ver=1.2.1 HTTP/1.1” 200 7200 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-includes/js/comment-reply.min.js?ver=3.6 HTTP/1.1” 200 786 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/themes/silesia/js/jquery.cycle.all.min.js HTTP/1.1” 200 7784 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/themes/silesia/js/load.js HTTP/1.1” 200 715 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/themes/silesia/functions/css/shortcodes.css HTTP/1.1” 200 2899 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/themes/silesia/functions/js/shortcode.js HTTP/1.1” 200 333 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/uploads/2013/06/%E5%8A%A8%E6%80%81IP%E8%A7%A3%E6%9E%90.jpg HTTP/1.1” 200 36779 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/uploads/2013/06/wtmart.png HTTP/1.1” 200 26105 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/uploads/2013/06/linux-dns.png HTTP/1.1” 200 14841 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/uploads/2013/06/win-dns.png HTTP/1.1” 200 30694 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/uploads/2013/06/win-ssh.png HTTP/1.1” 200 17524 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-includes/images/smilies/icon_smile.gif HTTP/1.1” 200 174 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/themes/silesia/images/natty-logo.png HTTP/1.1” 200 1438 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/uploads/2013/05/favicon.ico HTTP/1.1” 200 1150 “-” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /js/baidu.js HTTP/1.1” 200 249 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /js/google.js HTTP/1.1” 200 475 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/themes/silesia/images/slide-bg.png HTTP/1.1” 200 934 “http://blog.fens.me/wp-content/themes/silesia/style.css” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/themes/silesia/images/sprites/post-type.png HTTP/1.1” 200 2009 “http://blog.fens.me/wp-content/themes/silesia/style.css” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:41 +0000] “GET /wp-content/themes/silesia/images/ico-twitter.png HTTP/1.1” 200 2128 “http://blog.fens.me/wp-content/themes/silesia/style.css” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:41 +0000] “GET /wp-content/themes/silesia/images/ico-meta.gif HTTP/1.1” 200 73 “http://blog.fens.me/wp-content/themes/silesia/style.css” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/themes/silesia/images/crubms-div.png HTTP/1.1” 200 1255 “http://blog.fens.me/wp-content/themes/silesia/style.css” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/themes/silesia/images/bullets/5.gif HTTP/1.1” 200 62 “http://blog.fens.me/wp-content/themes/silesia/style.css” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:40 +0000] “GET /wp-content/themes/silesia/images/home-ico.png HTTP/1.1” 200 1103 “http://blog.fens.me/wp-content/themes/silesia/style.css” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:42 +0000] “GET /vps-ip-dns/?cf_action=sync_comments&post_id=499 HTTP/1.1” 200 48 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
71.96.108.116 - - [18/Sep/2013:06:56:46 +0000] “-” 400 0 “-” “-”
71.96.108.116 - - [18/Sep/2013:06:56:46 +0000] “-” 400 0 “-” “-”
71.96.108.116 - - [18/Sep/2013:06:57:34 +0000] “GET /dataguru-beijing-meeting-20130616/ HTTP/1.1” 200 8423 “http://blog.fens.me/vps-ip-dns/” “Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0”
66.249.66.84 - - [18/Sep/2013:06:57:35 +0000] “GET /series-angular/?cf_action=sync_comments&post_id=1991 HTTP/1.1” 200 48 “-” “Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)”
124.42.13.230 - - [18/Sep/2013:06:57:48 +0000] “GET /mongodb-replica-set/ HTTP/1.1” 200 50131 “http://www.baidu.com/s?tn=baiduhome_pg&ie=utf-8&bs=%E5%9C%A8linux%E5%90%AF%E5%8A%A8%E4%B8%8Bmongodb.conf&f=8&rsv_bp=1&wd=about+to+fork+child+process%2C+waiting+until+server+is+ready+for+connections.&rsv_n=2&rsv_sug3=1&rsv_sug1=1&rsv_sug4=187&inputT=906” “Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:48 +0000] “GET /wp-content/themes/silesia/style.css HTTP/1.1” 200 34090 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:50 +0000] “GET /wp-content/themes/silesia/js/load.js HTTP/1.1” 200 715 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:50 +0000] “GET /wp-content/themes/silesia/functions/js/shortcode.js HTTP/1.1” 200 333 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:50 +0000] “GET /wp-content/themes/silesia/functions/css/shortcodes.css HTTP/1.1” 200 2899 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:50 +0000] “GET /wp-includes/js/jquery/jquery-migrate.min.js?ver=1.2.1 HTTP/1.1” 200 7200 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:50 +0000] “GET /wp-includes/js/comment-reply.min.js?ver=3.6 HTTP/1.1” 200 786 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:51 +0000] “GET /wp-content/themes/silesia/js/jquery.cycle.all.min.js HTTP/1.1” 200 31539 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:51 +0000] “GET /wp-includes/js/jquery/jquery.js?ver=1.10.2 HTTP/1.1” 200 93128 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:53 +0000] “GET /wp-content/themes/silesia/images/slide-bg.png HTTP/1.1” 200 934 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:53 +0000] “GET /js/google.js HTTP/1.1” 200 475 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:53 +0000] “GET /js/baidu.js HTTP/1.1” 200 249 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:53 +0000] “GET /wp-content/uploads/2013/05/rs.png HTTP/1.1” 200 35768 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:53 +0000] “GET /wp-content/themes/silesia/images/ico-twitter.png HTTP/1.1” 200 2128 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:53 +0000] “GET /wp-content/themes/silesia/images/crubms-div.png HTTP/1.1” 200 1255 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:53 +0000] “GET /wp-content/themes/silesia/images/home-ico.png HTTP/1.1” 200 1103 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”
124.42.13.230 - - [18/Sep/2013:06:57:53 +0000] “GET /wp-content/themes/silesia/images/sprites/post-type.png HTTP/1.1” 200 2009 “http://blog.fens.me/mongodb-replica-set/” “Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS101170; InfoPath.2; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727)”

WebLogMapper

public class WebLogMapper extends Mapper<LongWritable, Text,Text, NullWritable> {
    @Override
    protected void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {
        //1.获取一行数据
        String line = value.toString();
        //2.切割
        String[] words = StringUtils.split(line, ' ');
        //3.etl
        if (words.length >= 11){
            context.write(value,NullWritable.get());
        }
    }
}

WebLogDriver

public class WebLogDriver {
    public static void main(String[] args) throws Exception {
// 输入输出路径需要根据自己电脑上实际的输入输出路径设置
        args = new String[] { "D:\\MapReduce_Data_Test\\etl\\input", "D:\\MapReduce_Data_Test\\etl\\output" };
        Configuration conf = new Configuration();
        Job job = Job.getInstance(conf);
        job.setJarByClass(WebLogDriver.class);
        job.setMapperClass(WebLogMapper.class);
        job.setOutputKeyClass(Text.class);
        job.setOutputValueClass(NullWritable.class);
        // 不需要reduceTask 设置reduceTask个数为0
        job.setNumReduceTasks(0);
        FileInputFormat.setInputPaths(job, new Path(args[0]));
        FileOutputFormat.setOutputPath(job, new Path(args[1]));
        boolean b = job.waitForCompletion(true);
        System.exit(b ? 0 : 1);
    }
}

MapReduce总结

image.png

文章标签：
云解析DNS
云数据库 MongoDB 版
分布式计算
数据采集
关键词：
mapreduce数据清洗
让线程再跑一会
目录
相关文章
星光下的赶路人
|
数据采集 分布式计算 搜索推荐
Hadoop学习---7、OutputFormat数据输出、MapReduce内核源码解析、Join应用、数据清洗、MapReduce开发总结（一）
Hadoop学习---7、OutputFormat数据输出、MapReduce内核源码解析、Join应用、数据清洗、MapReduce开发总结（一）
星光下的赶路人
202 0
星光下的赶路人
|
数据采集 缓存 分布式计算
Hadoop学习---7、OutputFormat数据输出、MapReduce内核源码解析、Join应用、数据清洗、MapReduce开发总结（二）
Hadoop学习---7、OutputFormat数据输出、MapReduce内核源码解析、Join应用、数据清洗、MapReduce开发总结（二）
星光下的赶路人
118 0
诸葛子房
|
7月前
|
分布式计算 Hadoop
Hadoop系列 mapreduce 原理分析
Hadoop系列 mapreduce 原理分析
诸葛子房
84 1
热烈的马
|
7月前
|
存储 分布式计算 负载均衡
【大数据技术Hadoop+Spark】MapReduce概要、思想、编程模型组件、工作原理详解（超详细）
【大数据技术Hadoop+Spark】MapReduce概要、思想、编程模型组件、工作原理详解（超详细）
热烈的马
234 0
武子康
|
2月前
|
分布式计算 资源调度 Hadoop
Hadoop-10-HDFS集群 Java实现MapReduce WordCount计算 Hadoop序列化 编写Mapper和Reducer和Driver 附带POM 详细代码 图文等内容
Hadoop-10-HDFS集群 Java实现MapReduce WordCount计算 Hadoop序列化 编写Mapper和Reducer和Driver 附带POM 详细代码 图文等内容
武子康
101 3
NorthS
|
6月前
|
分布式计算 Hadoop Java
Hadoop MapReduce编程
该教程指导编写Hadoop MapReduce程序处理天气数据。任务包括计算每个城市ID的最高、最低气温、气温出现次数和平均气温。在读取数据时需忽略表头，且数据应为整数。教程中提供了环境变量设置、Java编译、jar包创建及MapReduce执行的步骤说明，但假设读者已具备基础操作技能。此外，还提到一个扩展练习，通过分区功能将具有相同尾数的数字分组到不同文件。
NorthS
65 1
听风de歌
|
6月前
|
数据采集 SQL 分布式计算
Hadoop性能优化MapReduce任务中的小文件问题
【6月更文挑战第4天】
听风de歌
121 3
kng32f3vbngrm
|
7月前
|
分布式计算 Hadoop Java
Hadoop MapReduce 调优参数
对于 Hadoop v3.1.3，针对三台4核4G服务器的MapReduce调优参数包括：`mapreduce.reduce.shuffle.parallelcopies`设为10以加速Shuffle，`mapreduce.reduce.shuffle.input.buffer.percent`和`mapreduce.reduce.shuffle.merge.percent`分别设为0.8以减少磁盘IO。
kng32f3vbngrm
76 1
听风de歌
|
7月前
|
分布式计算 并行计算 搜索推荐
Hadoop MapReduce计算框架
【5月更文挑战第10天】HadoopMapReduce计算框架
听风de歌
61 3
郑小健
|
6月前
|
存储 分布式计算 Hadoop
Hadoop生态系统详解：HDFS与MapReduce编程
Apache Hadoop是大数据处理的关键，其核心包括HDFS（分布式文件系统）和MapReduce（并行计算框架）。HDFS为大数据存储提供高容错性和高吞吐量，采用主从结构，通过数据复制保证可靠性。MapReduce将任务分解为Map和Reduce阶段，适合大规模数据集的处理。通过代码示例展示了如何使用MapReduce实现Word Count功能。HDFS和MapReduce的结合，加上YARN的资源管理，构成处理和分析大数据的强大力量。了解和掌握这些基础对于有效管理大数据至关重要。【6月更文挑战第12天】
郑小健
259 0

热门文章

最新文章

  • 1
    Gitlab----使用Docker方式安装部署Gitlab
  • 2
    Idea里面老版本MapReduce设置FileInputFormat参数格式变化
  • 3
    Mac搭建安卓模拟器（支持M1/M2/M3/M4）
  • 4
    java报错javax.net.ssl.SSLHandshakeException:  sun.security.validator.ValidatorException
  • 5
    开发人员各级岗位胜任力模型
  • 6
    Hive之数据倾斜的原因和解决方法
  • 7
    【Java】留下没有基础眼泪的面试题
  • 8
    MapReduce实现WordCount
  • 9
    Hapdoop的一个Mapreduce示例代码--统计单词个数有排序功能
  • 10
    MapReduce设计模式学习
  • 1
    bigdata-08-MapReduce原理到实战
    87
  • 2
    阿里云E-MapReduce Trino专属集群外连引擎及权限控制踩坑实践
    453
  • 3
    mapreduce 快速入门
    77
  • 4
    通过比喻理解-MapReduce的数据处理流程
    84
  • 5
    如何在MapReduce中处理多个输入文件？
    186
  • 6
    MapReduce的优缺点是什么？
    333
  • 7
    Hadoop的JobTracker和TaskTracker在MapReduce中的作用是什么？
    287
  • 8
    MapReduce中的Combiner函数的作用和使用场景
    299
  • 9
    如何在MapReduce中处理数据倾斜问题？
    175
  • 10
    MapReduce中的Shuffle过程是什么？为什么它在性能上很关键？
    243

    • 相关课程

    更多
  • Hadoop 分布式计算框架 MapReduce
  • 快速掌握阿里云 E-MapReduce
  • E-MapReduce入门

    • 相关电子书

    更多
  • 时序及分析在hbase上的使用
  • 使用Apache Beam和HBase进行高效数据处理
  • 《基于Hologres和Flink的实时数据分析方案》

    • 相关实验场景

    更多
  • 日志服务之数据清洗与入湖
    • 下一篇
    fs.oss.accessKeyId和fs.oss.accessKeySecret。