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ODPS 下一个map / reduce 准备
2022-07-05 20:47:00 【全栈程序员站长】
大家好,又见面了,我是全栈君
阿里接到一个电话说练习和比赛智能二选一, 真的很伤心, 练习之前积极老龄化的权利.
要总结ODPS下一个 写map / reduce 并进行购买预测过程.
首先这里的hadoop输入输出都是表的形式, 我们须要一张输入表和一张输出表.
输入表为 提供的 t_alibaba_bigdata_user_brand_total_1 输出表为自己定义的wc_out
wc_out 须要预先定义. 以下的实例的功能是合并用户对商品的操作并记录反复次数, 创建的wc_out表结构为:
create table wc_out(user_id string,brand_id string,type string,visit_datetime string,count bigint);
然后在eclipse 中进行map /recduce 程序的编写.
将project导出为jar文件.(略)
在ODPS中创建资源并执行
执行完毕
接下来就能够设计更复杂的模型来进银行预测
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