大数据环境hadoop 的相关内容

阿里云文档 2025-04-25

选择业务场景

阿里云EMR针对不同业务场景提供了数据湖集群、数据分析集群、实时数据流集群、数据服务集群四类预定义业务场景。若您的业务需集成特定组合的组件，您可创建自定义集群，灵活组合EMR提供的组件，打造适配业务特性的大数据平台。本文将为您介绍这些集群的区别，帮助您快速选型。

阿里云文档 2025-04-18

与自建集群的对比优势

与自建Hadoop集群相比，开源大数据开发平台EMR提供弹性资源管理和自动化运维，降低运维复杂度，通过用户管理、数据加密和权限管理等为数据安全保驾护航，同时EMR集成了丰富的开源组件并打通开源生态与阿里云生态，便于快速搭建大数据处理和分析场景。

阿里云文档 2025-04-16

使用Hadoop命令操作OSS/OSS-HDFS

在使用阿里云EMR Serverless Spark的Notebook时，您可以通过Hadoop命令直接访问OSS或OSS-HDFS数据源。本文将详细介绍如何通过Hadoop命令操作OSS/OSS-HDFS。

阿里云文档 2025-02-14

基于自建Hadoop集群进行自定义CDH镜像

本文为您介绍如何在DataWorks绑定自建 Hadoop 集群并进行任务开发，以及如何自定义自建集群运行环境。

阿里云文档 2024-04-03

迁移Hadoop集群至DataLake集群

本文将详细阐述如何将您已有的旧版数据湖集群（Hadoop），高效地迁移至数据湖集群（DataLake），以下分别简称“旧集群”和“新集群”。迁移过程将充分考虑旧集群的版本、元数据类型以及存储方式，并针对这些因素，提供适应新集群的迁移策略与步骤。

文章 2023-08-28 来自：开发者社区

【大数据环境准备】（三）Hadoop安装（下）

（1）项目经验之HDFS存储多目录 ①生产环境服务器磁盘情况 ②在hdfs-site.xml文件中配置多目录，注意新挂载磁盘的访问权限问题。 HDFS的DataNode节点保存数据的路径由dfs.datanode.data.dir参数决定，其默认值为file://${hadoop.tmp.dir}/dfs/data，若服务器有...

文章 2023-08-28 来自：开发者社区

设置环境1、解压[centos@localhost data]$ tar -zxvf hadoop-3.1.3.tar.gz -C /data/module/ [centos@localhost data]$ mv hadoop-3.1.3 /data/moudle/hadoop2、添加Hadoop环境[centos@localhost data]$ sudo vim /etc/profile.....

文章 2023-07-12 来自：开发者社区

大数据平台搭建（容器环境）——Hadoop

Hadoop3.X 完成分布式安装部署需要三台虚拟机所有相关安装包在Master节点的/opt/software目录下解压到 /opt/module目录下命令中要求使用绝对路径一、 JDK安装在master操作 1、解压jdk tar -zxvf /opt/software/jdk-8u212-linux-x64.tar.gz -C /opt/m...

文章 2022-10-20 来自：开发者社区

基于mac构建大数据伪分布式学习环境（三）-配置免密登录并配置Hadoop

上传文件等操作，这里不再赘述前置免密登录操作:ssh-keygen -t rsa ll ~/.ssh/ cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys解压tar -zxvf hadoop-3.2.0.tar.gz配置环境变量vi /etc/profile exportPATH=.:$JAVA_HOME/bin:$HADOOP_HOME/....

文章 2022-02-16 来自：开发者社区

两种配置大数据环境的方法Ambari以及hadoop源代码安装的步骤

1.Ambari安装 Ambari & HDP（Hortonworks Data Platform） ***************************************************************************************************** Base： 0.操作系统原则与对应的HDP对应的版本。rhel6 or rhel...

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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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常见问题

最佳实践

EMR实时计算实践