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使用限制仅当计算引擎为CDH5.x、CDH6.x、Cloudera Data Platform 7.x、E-MapReduce3.x、E-MapReduce5.x、亚信DP5.3或华为FusionInsight 8.x时，支持管理Hadoop集群。CDH5.xCDH6.xCloudera Data ...

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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

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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。

文章 2024-09-27 来自：开发者社区

Hadoop集群搭建，基于3.3.4hadoop和centos8【图文教程-从零开始搭建Hadoop集群】，常见问题解决

Hadoop集群搭建，基于3.3.4hadoop Hadoop集群搭建，我这里采用的是Hadoop3.3.4，Jdk1.8，centos8,vmware16版本的。 1.虚拟机的创建首先我们需要创建三台虚拟机,先创建第一台虚拟机，然后对第一台虚拟机进行配置（网络配置，免密配置，jdk,hadoop环境的安装），然后进行克隆，将第一台虚拟机克隆两个虚拟机出来，最后开始搭建集群。一些目录说明：....

文章 2022-02-17 来自：开发者社区

hadoop集群常见问题解决

1：namenode启动 datanode未启动解决： /hadoop/tmp/dfs/name/current VERSION 查看截取id 与 data/current VERSION集群ID 保持一致如果一致还不可以删除所有主从节点的 current 目录重新 format 生成

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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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