1:创建用户+密码
useradd hadoop passwd hadoop
2:给新用户赋予sudo权限
A. 进入超级用户模式
su root
B. 修改文件权限
chmod u+w /etc/sudoers
C. 编辑/etc/sudoers文件
vim /etc/sudoers
找到这一行:”root ALL=(ALL) ALL”在起下面添加”xxx ALL=(ALL) ALL”(这里的xxx是你的用户名),然后保存。本教程设置如下:
hadoop ALL=(ALL) ALL
也可以设置如下:
hadoop ALL=NOPASSWD:ALL
D. 撤销文件的写权限
chmod u-w /etc/sudoers
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