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hadoop - 如何在hadoop中使用关键字匹配从多个页面获取整个页面内容

转载 作者:行者123 更新时间:2023-12-02 21:42:27 24 4
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我正在尝试一个小示例,例如,如果某个关键字在多个页面中的特定页面中匹配,那么我需要获取该特定页面的全部内容。该页面如下所示。

98339-93-05-1,PROD, 2 ,288.000,40.800,34.500,“Slate_Pro_Light”,9.0,8,“981-2535”
98339-93-05-1,PROD, 2 ,324.240,40.800,7.485,“Slate_Pro_Light”,9.0,2,“或”
98339-93-05-1,PROD, 2 ,333.360,40.800,19.473,“Slate_Pro_Light”,9.0,5,“电子邮件”
98339-93-05-1,PROD,2,288.000,31.440,104.442,“Slate_Pro_Light”,9.0,24,“jmcgaha@farmersagent.com”
98339-93-05-1,PROD,2,63.120,14.160,22.312,“ Slate_Pro_Bk_Condensed ”,8.0,7,“56-6177”
98339-93-05-1,PROD,2,91.920,14.160,7.880,“ Slate_Pro_Bk_Condensed ”,8.0,3,“1st”
98339-93-05-1,PROD,3,101.280,14.160,19.160,“Slate_Pro_Bk_Condensed”,8.0,7,“版本”
98339-93-05-1,PROD,3,127.920,14.160,12.232,“Slate_Pro_Bk_Condensed”,8.0,4,“4-14”
98339-93-05-1,PROD,3,45.120,704.160,66.239,“Slate_Pro_Medium”,13.5,11,“声明”
98339-93-05-1,PROD,3,113.760,704.160,28.350,“Slate_Pro_Medium”,13.5,4,“页面”
98339-93-05-1,PROD,3,144.480,704.160,61.890,“Slate_Pro_Light”,13.5,11,“(续)”
98339-93-05-1,PROD,3,45.120,661.200,60.491,“Slate_Pro_MediumIta”,13.5,9,“抵押贷款”
98339-93-05-1,PROD,3,107.760,661.200,6.142,“Slate_Pro_MediumIta”,13.5,1,“/”
98339-93-05-1,PROD,3,115.920,661.200,31.138,“Slate_Pro_MediumIta”,13.5,5,“其他”
98339-93-05-1,PROD,3,149.280,661.200,42.081,“Slate_Pro_MediumIta”,13.5,8,“兴趣”
98339-93-05-1,PROD,3,45.120,645.600,11.720,“Slate_ProIta”,10.0,3,“1st”
98339-93-05-1,PROD,3,58.560,645.600,43.320,“Slate_ProIta”,10.0,9,“抵押贷款”
98339-93-05-1,PROD,3,244.080,645.600,19.150,“Slate_ProIta”,10.0,4,“贷款”
98339-93-05-1,PROD,3,264.960,645.600,32.100,“Slate_ProIta”,10.0,6,“Number”
98339-93-05-1,PROD,3,45.120,631.680,26.040,“Slate_Pro_Light”,10.0,6,“Bryant”
98339-93-05-1,PROD,3,72.960,631.680,19.910,“Slate_Pro_Light”,10.0,4,“银行”
98339-93-05-1,PROD,3,45.120,619.680,12.230,“Slate_Pro_Light”,10.0,2,“PO”
98339-93-05-1,PROD,3,59.040,619.680,14.710,“Slate_Pro_Light”,10.0,3,“盒子”
98339-93-05-1,PROD,3,75.360,619.680,10.040,“Slate_Pro_Light”,10.0,2,“46”
98339-93-05-1,PROD,3,45.120,607.680,42.100,“Slate_Pro_Light”,10.0,11,“亨茨维尔”
98339-93-05-1,PROD,3,89.040,607.680,9.770,“Slate_Pro_Light”,10.0,2,“AL”

因此,如果某列与关键字 Slate_Pro_Bk_Condensed 匹配,那么我需要获取整个数据。
在上面的关键字中,页面 3与相匹配,所以现在我需要获取页面3中的所有数据。

所以请帮助我解决使用Map Reduce程序

先感谢您。

最佳答案

可能的解决方案是将页面拆分为文件,然后使用FileInputFormat在MR中处理它们。
然后,使用java regex检查某个页面是否包含“Slate_Pro_Bk_Condensed”。
您可以遍历每页中的行以显着提高性能-找到字符串后,您可以跳到下一页。

关于hadoop - 如何在hadoop中使用关键字匹配从多个页面获取整个页面内容,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/27717208/

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