hadoop系列（一） Centos7下安装hadoop

环境准备

1. 宿主机win10
2. vmware 安装三台centos7
3. 配置SSH无密码登录

Slave1
scp ~/.ssh/id_rsa.pub [e-mail]:~/.ssh/id_rsa1.pub
Slave2
scp ~/.ssh/id_rsa.pub [e-mail]:~/.ssh/id_rsa2.pub
Master
cat ~/.ssh/id_rsa1.pub >> ~/.ssh/authorized_keys
cat ~/.ssh/id_rsa2.pub >> ~/.ssh/authorized_keys
然后将authorized_keys 发送到所有的Slave
scp ~/.ssh/authorized_keys [e-mail]:~/.ssh
scp ~/.ssh/authorized_keys [e-mail]:~/.ssh
并确保Slave上的authorized_keys权限为600即可