hadoop运行案例的相关内容

文章 2023-11-10 来自：开发者社区

Hadoop学习笔记：运行wordcount对文件字符串进行统计案例

文/朱季谦我最近使用四台Centos虚拟机搭建了一套分布式hadoop环境，简单模拟了线上上的hadoop真实分布式集群，主要用于业余学习大数据相关体系。其中，一台服务器作为NameNode，一台作为Secondary NameNode，剩下两台当做DataNodes节点服务器，类似下面这样一个架构——NameNodeSecondary NameNodeDataNodesmaster1(192.....

阿里云文档 2023-09-13

如何在EMR的Hadoop集群中运行Spark作业对接DataHub数据_EMR on ECS_开源大数据平台 E-MapReduce(EMR)

本文介绍如何在E-MapReduce的Hadoop集群，运行Spark作业消费DataHub数据、统计数据个数并打印出来。

文章 2023-08-07 来自：开发者社区

Hadoop本地运行模式（Grep案例和WordCount 案例）

前言Hadoop运行模式包括：本地模式、伪分布式模式以及完全分布式模式。这里先介绍本地运行模式运行官方Grep案例提供一些文本文件, grep可以从中找到想要匹配的文本1. 在当前用户主（HOME）目录下面创建一个input目录[ytsky@hadoop101 ~]$ mkdir input2.将Hadoop的xml配置文件复制到input[ytsky@hadoop101 ~]$ cp $HAD....

阿里云文档 2022-10-28

如何解决Dataphin脚本任务运行报错

问题描述Dataphin脚本任务运行报错“Error while processing statement: FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask“。解决方案上...

文章 2022-06-13 来自：开发者社区

三十二、基于Hadoop伪分布式运行Hadoop自带wordcount案例

环境背景：Hadoop伪分布式已经搭建完成Hadoop2.6.0Hadoop伪分布搭建见：Hadoop伪分布式的搭建详情https://blog.csdn.net/m0_54925305/article/details/118650350?spm=1001.2014.3001.5502https://blog.csdn.net/m0_54925305/article/details/118650....

文章 2022-06-13 来自：开发者社区

在Hadoop系统中运行WordCount案例失败解决方法

报错提示:mapreduce.shuffle set in yarn.nodemanager.aux-services is invalid请在yarn-site.xml中添加<property> <name>yarn.nodemanager.aux-services</name> <value>mapreduce_shuffle&...

文章 2022-02-17 来自：开发者社区

好程序员大数据分享Hadoop2.X的环境配置与运行官方案例

一、安装之前的准备1.1 修改主机名称进入 Linux 系统查看本机的主机名。通过 hostname 命令查看。[root@localhost ~]# hostnamelocalhost.localdomain如果此时需要修改主机名则可以按照如下的方式进行修改范例一：临时修改主机名称为Hadoop01 hostname hadoop01 重启之后失效范例二：永久修改主机名称为Hadoop01vi....

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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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