（二）配置ssh无密码访问集群机器
master节点
[email protected]:/home# su - spark [email protected]:~$ [email protected]:~$ ssh-keygen -t rsa #一直enter键
[email protected]:~$ cd .ssh/ [email protected]:~/.ssh$ ls id_rsa id_rsa.pub [email protected]:~/.ssh$ cat id_rsa.pub > authorized_keys [email protected]:~/.ssh$ scp [email protected]:~/.ssh/id_rsa.pub ./master_rsa.pub
[email protected]:~/.ssh$ ls authorized_keys id_rsa id_rsa.pub known_hosts master_rsa.pub [email protected]:~/.ssh$ cat master_rsa.pub >>authorized_keys
worker1节点
与master节点执行过程相同
worker2节点
与master节点执行过程相同
执行完上述操作之后：
master节点：
[email protected]:~/.ssh$ scp [email protected]:~/.ssh/id_rsa.pub ./worker1_rsa.pub
注意是在./ssh目录下
[email protected]:~/.ssh$ cat worker1_rsa.pub >>authorized_keys [email protected]:~/.ssh$ scp [email protected]:~/.ssh/id_rsa.pub ./worker2_rsa.pub
[email protected]:~/.ssh$ cat worker2_rsa.pub >>authorized_keys
worker1节点
[email protected]:~/.ssh$ scp [email protected]:~/.ssh/id_rsa.pub ./worker2_rsa.pub cat worker2_rsa.pub >>authorized_keys
worker2节点
[email protected]:~/.ssh$ scp [email protected]:~/.ssh/id_rsa.pub ./worker1_rsa.pub cat worker1_rsa.pub >>authorized_keys
验证是否配置成功
从master节点分别登陆自身、worker1节点与worker2节点（可能第一次需要密码、退出后，第二次重新ssh则不需要密码）
[email protected]:~/.ssh$ ssh master
[email protected]:~/.ssh$ ssh worker1
[email protected]:~/.ssh$ ssh worker2
从worker1节点登陆自身、master节点与worker2节点（可能第一次需要密码、退出后，第二次重新ssh则不需要密码）
[email protected]:~/.ssh$ ssh master
[email protected]:~/.ssh$ ssh worker1
[email protected]:~/.ssh$ ssh worker2
从worker2节点登陆自身、master节点与worker1节点（可能第一次需要密码、退出后，第二次重新ssh则不需要密码）
[email protected]:~/.ssh$ ssh master
[email protected]:~/.ssh$ ssh worker1
[email protected]:~/.ssh$ ssh worker2
注意，登陆到其他节点后，一定要记得退出
下文中，将开始安装hadoop。。。
时间： 2024-10-06 00:11:14