[jira] [Created] (HADOOP-10650) Add ability to specify a negative ACL (black list) of users and groups

["Benoy Antony (JIRA)" <ji...@apache.org>]

Benoy Antony created HADOOP-10650:
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             Summary: Add ability to specify a negative ACL (black list) of users and groups
                 Key: HADOOP-10650
                 URL: https://issues.apache.org/jira/browse/HADOOP-10650
             Project: Hadoop Common
          Issue Type: Sub-task
            Reporter: Benoy Antony
            Assignee: Benoy Antony


Currently , it is possible to define a acl (user and groups) for a service. To temporarily remove authorization for a set of users, administrator needs to remove the users from the specific group and this may be a lengthy process ( update ldap groups, flush caches on machines).

 If there is a facility to define a negative acs for services, then administrator can disable users by specifying the users in negative acls. In other words, one can specify a whitelist of users and groups as well as a blacklist of users and groups. 

One can also specify a default blacklist to disable the users from accessing any service.



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