Hadoop 中超级用户和超级组的区别
Difference between Superuser and supergroup in Hadoop
Hadoop/HDFS中的supergroup和superuser是什么？
超级用户
基于Hadoop official documentation：
The super-user is the user with the same identity as the name node process itself. Loosely, if you started the name node, then you are the super-user. The super-user can do anything in that permissions checks never fail for the super-user.
超级组
超级组是超级用户组。该组用于确保 Hadoop Client 具有超级用户访问权限。可以使用 core-site.xml 文件中的 dfs.permissions.superusergroup 属性 配置。
参考资料
Hadoop/HDFS中的supergroup和superuser是什么？
超级用户
基于Hadoop official documentation：
The super-user is the user with the same identity as the name node process itself. Loosely, if you started the name node, then you are the super-user. The super-user can do anything in that permissions checks never fail for the super-user.
超级组
超级组是超级用户组。该组用于确保 Hadoop Client 具有超级用户访问权限。可以使用 core-site.xml 文件中的 dfs.permissions.superusergroup 属性 配置。
参考资料