ubuntu 安装hadoop_cdh5.4.1步骤

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在安装系统时创建用户hadoop

1、修改主机名(四台主机)

sudo vi /etc/hostname

master

datanode1

datanode2

datanode3

2、主机名解析

sudo vi /etc/hosts

192.168.182.132 master
192.168.182.135 datanode1
192.168.182.134 datanode2
192.168.182.133 datanode3

scp hosts hadoop@datanode1:/etc

scp hosts hadoop@datanode2:/etc

scp hosts hadoop@datanode3:/etc

3、关闭防火墙

sudo ufw disabl

4、免密码登陆

cd /home/hadoop

sudo mkdir .ssh

cd .ssh

ssh-keygen -t rsa

cp id_rsa.pub authorized_keys

5、同步公钥文件

scp authorized_keys hadoop@datanode1:/home/hadoop/.ssh

scp authorized_keys hadoop@datanode2:/home/hadoop/.ssh

scp authorized_keys hadoop@datanode3:/home/hadoop/.ssh

6、创建临时目录

cd /home

sudo mkdir alan

sudo chown -R hadoop:hadoop alan

sudo chmod -R 750 alan

7、接下来参考我的另一篇博文进行详细配置：http://blog.csdn.net/bff1022/article/details/48177257

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