Deleting a User
The administrator can delete an MRS cluster user that is not required on MRS Manager. Deleting a user is allowed only in clusters with Kerberos authentication enabled or normal clusters with the EIP function enabled.
If you want to create a new user with the same name as user A after deleting user A who has submitted a job on the client or MRS console, you need to delete user A's residual folders when deleting user A. Otherwise, the newly created user A may fail to submit a job.
To delete residual folders, log in to each Core node in the MRS cluster and run the following commands. In the following commands, $user indicates the folder named after the username.
cd /srv/BigData/hadoop/data1/nm/localdir/usercache/
rm -rf $user
The operations described in this section apply only to clusters of versions earlier than MRS 3.x.
For clusters of MRS 3.x or later, see Deleting a User.
Procedure
- Access MRS Manager. For details, see Accessing MRS Manager (MRS 2.x or Earlier).
- On MRS Manager, click System.
- In the Permission area, click Manage User.
Figure 1 User management
- In the row that contains the user to be deleted, choose .
Figure 2 Deleting a user
- Click OK.
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