What is supergroup and superuser in Hadoop/HDFS?
Asked
Active
Viewed 926 times
1 Answers
0
Superuser
Based on the 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.
Supergroup
Supergroup is the group of superusers. This group is used to ensure that the Hadoop Client has superuser access. It can be configured using dfs.permissions.superusergroup property in the core-site.xml file.
References
Hadi
- 36,233
- 13
- 65
- 124