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超详细的Hadoop2配置详解

发表于：2024-11-23 作者：热门IT资讯网编辑

编辑最后更新 2024年11月23日，1. 集群环境Master 192.168.2.100Slave1 192.168.2.101Slave2 192.168.2.1022. 下载安装包#Masterwget http://mirror

1. 集群环境
Master 192.168.2.100
Slave1 192.168.2.101
Slave2 192.168.2.102

2. 下载安装包
#Master
wget http://mirrors.shu.edu.cn/apache/hadoop/common/hadoop-2.8.4/hadoop-2.8.4.tar.gz
tar zxvf hadoop-2.8.4.tar.gz

3. 修改Hadoop配置文件
#Master
cd hadoop-2.8.4/etc/hadoop
vim hadoop-env.sh
export JAVA_HOME=/usr/local/src/jdk1.8.0_152

vim yarn-env.sh
export JAVA_HOME=/usr/local/src/jdk1.8.0_152

vim slaves
slave1
slave2

vim core-site.xml

                        fs.defaultFS                hdfs://master:9000                                hadoop.tmp.dir                file:/usr/local/hadoop-2.8.4/tmp

vim hdfs-site.xml

                        dfs.namenode.secondary.http-address                master:9001                                dfs.namenode.name.dir                file:/usr/local/hadoop-2.8.4/dfs/name                                dfs.datanode.data.dir                file:/usr/local/hadoop-2.8.4/dfs/data                                dfs.repliction                3

vim mapred-site.xml

                        mapreduce.framework.name                yarn

vim yarn-site.xml

                        yarn.nodemanager.aux-services                mapreduce_shuffle                                yarn.nodemanager.aux-services.mapreduce.shuffle.class                org.apache.hadoop.mapred.ShuffleHandler                                yarn.resourcemanager.address                master:8032                                yarn.resourcemanager.scheduler.address                master:8030                                yarn.resourcemanager.resource-tracker.address                master:8035                                yarn.resourcemanager.admin.address                master:8033                                yarn.resourcemanager.webapp.address                master:8088

#创建临时目录和文件目录
mkdir /usr/local/hadoop-2.8.4/tmp
mkdir -p /usr/local/hadoop-2.8.4/dfs/name
mkdir -p /usr/local/hadoop-2.8.4/dfs/data

4. 配置环境变量
#Master、Slave1、Slave2
vim ~/.bashrc
HADOOP_HOME=/usr/local/src/hadoop-2.8.2
export PATH=$PATH:$HADOOP_HOME/bin
#刷新环境变量
source ~/.bashrc

5. 拷贝安装包
#Master
scp -r /usr/local/src/hadoop-2.8.4 root@slave1:/usr/local/src/hadoop-2.8.4
scp -r /usr/local/src/hadoop-2.8.4 root@slave2:/usr/local/src/hadoop-2.8.4

6. 启动集群
#Master
#初始化Namenode
hadoop namenode -format