hadoop运行配置的相关内容

阿里云文档 2024-04-18

配置Hadoop集群的弹性伸缩

当您的业务量需求不断波动时，建议您开启弹性伸缩功能并配置相应的伸缩规则，以便于E-MapReduce（简称EMR）可以按业务量波动增加或减少Task节点。确保作业完成的同时，可以节省成本。本文为您介绍如何在EMR控制台配置弹性伸缩。

阿里云文档 2023-09-13

如何配置数据湖构建作为EMR上Hadoop集群的元数据_EMR on ECS_开源大数据平台 E-MapReduce(EMR)

本文为您简单介绍阿里云数据湖构建，以及如何切换E-MapReduce（简称EMR）的元数据存储类型。

问答 2023-05-02 来自：开发者社区

alink可以在hadoop3的yarn集群环境中运行吗？我看pom文件里面配置的都是2.8.0

文章 2022-09-20 来自：开发者社区

Hadoop运行模式（五）、编写Hadoop集群常用脚本、Hadoop集群启停脚本、常用端口号说明、集群时间同步、时间服务器配置、其他机器配置

@[toc]3.Hadoop运行模式3.9编写Hadoop集群常用脚本3.9.1Hadoop集群启停脚本（包含HDFS，Yarn，Historyserver）：myhadoop.sh[summer@hadoop102 ~]$ cd /home/summer/bin[summer@hadoop102 bin]$ vim myhadoop.sh输入如下内容：#!/bin/bash if [ $# .....

文章 2022-09-20 来自：开发者社区

Hadoop运行模式（四）、配置历史服务器、配置日志的聚集、删除HDFS上已经存在的文件、集群启动/停止方式总结、配置mapred-site.xml、配置yarn-site.xml

@[toc]3.Hadoop运行模式3.6配置历史服务器为了查看程序的历史运行情况，需要配置一下历史服务器。具体配置步骤如下：3.6.1配置mapred-site.xml配置前记得将yarn关闭[summer@hadoop103 hadoop-3.1.3]$ sbin/stop-yarn.sh[summer@hadoop102 hadoop]$ vim mapred-site.xml在该文件里面....

文章 2022-09-20 来自：开发者社区

Hadoop运行模式（三）、群起集群、配置workers、启动集群、启动HDFS、拼接、Web端查看HDFS的NameNode、Web端查看YARN的ResourceManager

@[toc]3.Hadoop运行模式3.5群起集群3.5.1配置workerssummer@hadoop102 hadoop]$ vim /opt/module/hadoop-3.1.3/etc/hadoop/workers在该文件中增加如下内容：hadoop102 hadoop103 hadoop104注意：该文件中添加的内容结尾不允许有空格，文件中不允许有空行同步所有节点配置文件[summe....

文章 2022-09-20 来自：开发者社区

Hadoop运行模式（二）、SSH无密登录配置、生成公钥和私钥、集群配置、集群部署规划、默认配置文件、核心配置文件、HDFS配置文件、YARN配置文件、MapReduce配置文件、在集群上分发配置好的Hadoop运行模式（二）、SSH无密登录配置、生成公钥和私钥、集群配置、集群部署规划、默认配置文件、核心配置文件、HDFS配置文件、YARN配置文件、MapReduce配置文件、在集群上分发配置好的

@[toc]3.Hadoop运行模式3.3SSH无密登录配置3.3.1配置ssh3.3.1.1基本语法ssh 另一台电脑的IP地址3.3.1.2ssh连接时出现Host key verification failed的解决方法[summer@hadoop102 ~]$ ssh hadoop103如果出现如下内容Are you sure you want to continue connectin....

文章 2022-08-28 来自：开发者社区

Hadoop运行模式（二）、SSH无密登录配置、生成公钥和私钥、集群配置、集群部署规划、默认配置文件、核心配置文件、HDFS配置文件、YARN配置文件、MapReduce配置文件、在集群上分发配置好的

问答 2022-02-25 来自：开发者社区

window的ecplise连接虚拟机当中的hadoop开发和运行怎么配置

我在虚拟机当中安装centos6.6，centos中安装hadoop2.5.2，可以正常运行我想在window的ecplise连接虚拟机当中的hadoop开发和运行hadoop程序，不知道如何配置

问答 2022-02-15 来自：开发者社区

hadoop2.2.0集群运行wordcount例子生成2个结果文件:配置报错

最近在虚拟机中安装了Hadoop2.2.0的集群，nameNode是redhat的，dataNode是ubuntu的，起服务进程都是正常的,通过JPS和50070都可以正常访问，运行例子wordcount后发现在输出文件夹里生成了2个结果文件,part-r-00000,part-r-00001，这2个文件里的内容完全不一样，就是把单词统计结果分别存到了2个文件中，结果是正确的，但是分在了2个文件....

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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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EMR实时计算实践