hadoop combiner partitioner 的相关内容

文章 2024-04-12 来自：开发者社区

Hadoop【基础知识 01+02】【分布式文件系统HDFS设计原理+特点+存储原理】（部分图片来源于网络）【分布式计算框架MapReduce核心概念+编程模型+combiner&partitioner+词频统计案例解析与进阶+作业的生命周期】（图片来源于网络）

Hadoop是一个大数据解决方案。它提供了一套分布式系统基础架构。核心内容包含 hdfs 和mapreduce。hadoop2.0 以后引入 yarn。hdfs 是提供数据存储的，mapreduce 是方便数据计算的。这篇主要说HDFS。 hdfs 对应 namenode 和 datanode。 namenode 负责保存元数据的基本信息，datanode 直接存放数据本身； ma...

文章 2024-04-12 来自：开发者社区

Hadoop【基础知识 02】【分布式计算框架MapReduce核心概念+编程模型+combiner&partitioner+词频统计案例解析与进阶+作业的生命周期】（图片来源于网络）

1. 概述同 HDFS 一样，Hadoop MapReduce 也采用了 Master/Slave（M/S）架构，具体如图所示。它主要由以下几个组件组成：Client、JobTracker、TaskTracker 和 Task。下面分别对这几个组件进行介绍。 Client 我们将编写的 MapReduce 程序通过 Client 提交到 JobTracker 端；同时也可通过 Clie...

问答 2021-12-04 来自：开发者社区

Hadoop中Combiner和partitioner是用来干嘛的？

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更新时间 2024-04-30 05:41:34

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