hadoop系统配置完全分布式1

完全分布式

1.克隆3台client(centos7)

右键centos-7-->管理->克隆-> ... -> 完整克隆

2.启动client

3.启用客户机共享文件夹。

4.修改hostname和ip地址文件

[/etc/hostname]

s251

[/etc/sysconfig/network-scripts/ifcfg-ens33]

...

IPADDR=..

5.重启网络服务

$>sudo service network restart

6.修改/etc/resolv.conf文件

nameserver 192.168.77.2

7.重复以上3 ~ 6过程.

准备完全分布式主机的ssh

1.删除所有主机上的/home/centos/.ssh/*

1. cd ~/.ssh 【s250的主机】

rm -rf *

2.ssh s251 rm -rf /home/centos/.ssh/*

3.ssh s252 rm -rf /home/centos/.ssh/*

4.ssh s253 rm -rf /home/centos/.ssh/*

2.在s250主机上生成密钥对

$>ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa

3.将s250的公钥文件id_rsa.pub远程复制到251 ~ 253主机上。

并放置/home/centos/.ssh/authorized_keys

$>scp id_rsa.pub centos@s250:/home/centos/.ssh/authorized_keys

$>scp id_rsa.pub centos@s251:/home/centos/.ssh/authorized_keys

$>scp id_rsa.pub centos@s252:/home/centos/.ssh/authorized_keys

$>scp id_rsa.pub centos@s253:/home/centos/.ssh/authorized_keys