mapreduce topn-阿里云

MapReduce 案例之Top N

MapReduce 案例之Top N1. Top NTop-N 分析法是指从研究对象中得到所需的 N 个数据，并对这 N 个数据进行重点分析的方法。2. 实例描述对数据文件中的数据取最大 top-n。数据文件中的每个都是一个数据。原始输入数据为：10 3 8 7 6 5 1 2 9 411 12 1...

Hadoop 分布式计算框架 MapReduce

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MapReduce 怎么实现 TopN的呢？

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更新时间 2024-03-02 01:51:53

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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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StarRocks 免费试用

产品入门

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常见问题

最佳实践

EMR实时计算实践