Configure a Resource-based Policy: HBase
How to add a new policy to an existing HBase service.
On the Service Manager page, select an existing HBase service.
The List of Policies page appears.
Click Add New Policy.
The Create Policy page appears.
Complete the Create Policy page as follows:
Table 1. Policy Details
Policy Name Enter an appropriate policy name. This name cannot be duplicated across the system. This field is mandatory. normal/override Enables you to specify an override policy. When override is selected, the access permissions in the policy override the access permissions in existing policies. This feature can be used with Add Validity Period to create temporary access policies that override existing policies. HBase Table Select the appropriate database. Multiple databases can be selected for a particular policy. This field is mandatory. HBase Column-family For the selected table, specify the column families to which the policy applies. HBase Column For the selected table and column families, specify the columns to which the policy applies. Description (Optional) Describe the purpose of the policy. Audit Logging Specify whether this policy is audited. (De-select to disable auditing). Policy Label Specify a label for this policy. You can search reports and filter policies based on these labels. Add Validity Period Specify a start and end time for the policy. Table 2. Allow Conditions
Specify the groups to which this policy applies.
To designate a group as an Administrator, select the Delegate Admin check box. Administrators can edit or delete the policy, and can also create child policies based on the original policy.
The public group contains all users, so granting access to the public group grants access to all users.
Specify the users to which this policy applies.
To designate a user as an Administrator, select the Delegate Admin check box. Administrators can edit or delete the policy, and can also create child policies based on the original policy.
Permissions Add or edit permissions: Read, Write, Create, Admin, Select/Deselect All. Delegate Admin You can use Delegate Admin to assign administrator privileges to the users or groups specified in the policy. Administrators can edit or delete the policy, and can also create child policies based on the original policy.
- You can use the Plus (+) symbol to add additional conditions. Conditions are evaluated in the order listed in the policy. The condition at the top of the list is applied first, then the second, then the third, and so on.
- Click Add.
Provide User Access to HBase Database Tables from the Command Line
HBase provides the means to manage user access to HBase database tables directly from the command line. The most commonly-used commands are:
For example, to create a policy that grants user1 read/write permission on the table usertable, the command would be:
The syntax is the same for granting CREATE and ADMIN rights.
For example, to revoke the read/write access of user1 to the table usertable, the command would be:
Unlike Hive, HBase has no specific revoke commands for each user privilege.