mapreduce计算-阿里云

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数据集1.查询地区编号NCDC是美国国家气象数据中心的缩写，是一个负责收集、存储和分发全球气象和气候数据的组织。我们通过NCDC查询地区对应的编号，参考这里。2.数据集的下载打开资源管理器并输入路径：ftp://ftp.ncdc.noaa.gov/pub/data/noaa/isd-lite/打开目...

Hadoop 分布式计算框架 MapReduce

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大数据计算的基石——MapReduce

摘要MapReduce 是一个编程模型，也是一个处理和生成超大数据集的算法模型的相关实现。用户首先创建一个 Map 函数处理一个基于 key/value pair 的数据集合，输出中间的基于 key/value pair 的数据集合；然后再创建一个 Reduce 函数用来合并所有的具有相同中间 ke...

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开源大数据平台 E-MapReduce

开源大数据平台 E-MapReduce（简称“EMR”）是云原生开源大数据平台，向客户提供简单易集成的Hadoop、Hive、Spark、Flink、Presto、ClickHouse、StarRocks、Delta、Hudi等开源大数据计算和存储引擎服务。

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立即开通

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优惠活动

StarRocks 免费试用

产品入门

快速入门指导

常见问题

最佳实践

EMR实时计算实践