配置hadoop 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。

文章 2024-04-16 来自：开发者社区

[绝对要收藏]配置hadoop完全分布式环境

## 环境： hadoop-2.7.2，jdk1.8.0_144，CentOS-7-x86_64-Minimal-2009.iso 1 先创建一个主机 2 修改id，hostname，hosts 3 关闭防火墙 4 连接xshell 5 在opt下创建en和software包并将java导入到software包中 6 解压 java...

问答 2024-01-18 来自：开发者社区

Flink CDC里是需要配置hadoop的环境变量这些吗？

Flink CDC里用Flink的HiveCatalog连接提示这个错误，把hadoop-common的依赖jar包拷贝到flink的lib目录下也不行，是需要配置hadoop的环境变量这些吗？

文章 2023-09-24 来自：开发者社区

自动批量配置n台全分布hadoop负载集群脚本

可执行脚本 #!/bin/bash # Define the software versions and installation directory jdk_version="jdk-11.0.12" mysql_version="mysql-8.0.26" hadoop_version="hadoop-3.3.5" h...

文章 2023-09-24 来自：开发者社区

linux--远古版本大学教材(centos7.6!!)记录2配置hadoop3.3.5

下载和安装Java Development Kit (JDK) 8 大多数环境使用jdk8较为合适除非有特殊需求 #下载JDK 8 wget https://download.java.net/java/GA/jdk8/8u301-b09/jdk-8u301-linux-x64.tar.gz #解压JDK安装包 tar -zxvf jdk-8u301-linux-x64.tar.gz -C /u....

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。

文章 2023-07-28 来自：开发者社区

Centos7配置Hadoop出现Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password)的解决

背景这个问题是我在配置Hadoop的时候出现的，如果在一台电脑上虚拟出多台的虚拟机，那么为了便于这些虚拟机之间构建Hadoop集群，我们会使用ssh的免密登录操作，因为如果这个集群之间的各台主机访问对方主机需要密码，那么就会出现Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password)解决其实报错已经很明确的说明了是由于....

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/....

问答 2022-09-07 来自：开发者社区

如何配置hive 数据源，此hive 部署在HA 模式的hadoop 上？

文章 2022-06-13 来自：开发者社区

阿里云配置hadoop并远程访问

软件工程专业在读大二本科生，通过同学了解到“飞天加速计划·高校学生在家实践”活动。记录一下遇到的坑问题：按照阿里云提供的方案部署hdfs并修改配置文件后，在本地通过java调用HDFS的API，发现仍然不能从本地进行远程访问，提示连接被拒绝。需要额外做的步骤：1.把defaultFS里的localhost改成云主机的内网IP，注意是内网IP。2.在本地修改hosts文件（步骤自行百度），加入一行....

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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

产品文档

优惠活动

StarRocks 免费试用

产品入门

快速入门指导

常见问题

最佳实践

EMR实时计算实践