hadoop配置初始化的相关内容

文章 2024-06-05 来自：开发者社区

hadoop集群配置与部署 Namenode -format重复初始化

Hadoop集群的配置与部署是一个复杂但重要的过程，特别是当涉及到Namenode的重复初始化（通常是使用hdfs namenode -format命令）时，需要格外小心。以下是关于Hadoop集群配置与部署中处理Namenode重复初始化的步骤和注意事项： 1. 前提条件确保已经安装了Hadoop，并且配置了正确的环境变量。确认了集群的架构，包括Namenode、Datanode...

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。

文章 2023-12-23 来自：开发者社区

Hadoop【部署 01】腾讯云Linux环境CentOS Linux release 7.5.1804单机版hadoop-3.1.3详细安装步骤（安装+配置+初始化+启动脚本+验证）

我使用的安装文件是 hadoop-3.1.3.tar.gz ，以下内容均以此版本进行说明。1.前置条件Hadoop 的运行依赖 jdk 我安装的 openjdk11【这里有个很深的坑，随后会说明】。[root@tcloud ~]# java -version openjdk version "11" 2018-09-25 OpenJDK Runtime Environment 18.9 (bui....

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。

阿里云文档 2023-09-03

如何配置HadoopMapReduce类型作业_EMR on ECS_开源大数据平台 E-MapReduce(EMR)

本文介绍如何配置Hadoop MapReduce类型的作业。

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更新时间 2024-06-08 12:39:50

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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