Hadoop物理机集群搭建（hdfs和yarn）版本：hadoop-3.1.2

最新推荐文章于 2025-05-08 19:39:09 发布

原创

最新推荐文章于 2025-05-08 19:39:09 发布 · 4.3k 阅读

4 ·

CC 4.0 BY-SA版权

文章标签：

#hadoop #yarn #hdfs

本文档详细介绍了如何在四台服务器上搭建Hadoop 3.1.2集群，包括NameNode、ResourceManager、DataNode和NodeManager的配置。首先确保安装了JDK8，并设置SSH互信。接着，配置hosts、解压Hadoop，然后依次配置hadoop-env.sh、yarn-env.sh、mapred-env.sh、core-site.sh、hdfs-site.sh、yarn-site.xml和mapred-site.xml。最后，启动HDFS和YARN集群，检查通过jps命令验证各节点角色正常运行。

官方文档：http://hadoop.apache.org/docs/r3.1.2/hadoop-project-dist/hadoop-common/ClusterSetup.html

准备工作：

1.需要先安装jdk8

2.四台机器ssh相互信任（教程：一会写）

3.关闭防火墙或者四台机器ip都加到白名单

服务器配置（4台）：

172.29.1.155（用作NameNode和ResourceManager）

172.29.1.157、172.29.1.218、172.29.1.219（用作DataNode和NodeManager）

hadoop下载：

http://archive.apache.org/dist/hadoop/common/hadoop-3.1.2/hadoop-3.1.2.tar.gz

步骤1 -> 配置机器hosts

vi /etc/hosts
172.29.1.155  host-155
172.29.1.157  host-157
172.29.1.218  host-218
172.29.1.219  host-219

source  /etc/hosts

步骤2 -> 解压hadoop

我的hadoop-3.1.2.tar.gz路径在 /home下

cd /home
tar -xzvf hadoop-3.1.2.tar.gz

步骤3 -> 配置hadoop，建议多参照官方文档

配置hadoop-env.sh，添加如下内容（host-155,host-157,host-218,host-219）

[root@localhost home]# vi hadoop-3.1.2/etc/hadoop/hadoop-env.sh

export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.102-4.b14.el7.x86_64
export HADOOP_HOME=/home/hadoop-3.1.2
export PATH=$PATH:$HADOOP_HOME/bin
export HADOOP_OPTS="-Djava.library.path=${HADOOP_HOME}/lib/native"

export HDFS_NAMENODE_USER="root"
export HDFS_DATANODE_USER="root"
export HDFS_SECONDARYNAMENODE_USER="root"
export YARN_RESOURCEMANAGER_USER="root"
export YARN_NODEMANAGER_USER="root"

如果ssh信任的端口非22，改成如33322的话需要添加配置HADOOP_SSH_OPTS 如下：

export HADOOP_SSH_OPTS="-o BatchMode=yes -o StrictHostKeyChecking=no -o ConnectTimeout=10s -p 33322"

配置yarn-env.sh和mapred-env.sh 添加自己的JAVA_HOME（host-155,host-157,host-218,host-219）

export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.102-4.b14.el7.x86_64

配置core-site.sh（host-155,host-157,host-218,host-219）

[root@localhost home]# vi hadoop-3.1.2/etc/hadoop/core-site.xml 

<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed

最低0.47元/天解锁文章