[jira] [Comment Edited] (HBASE-8409) Security support for namespaces

["Devaraj Das (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-8409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13743939#comment-13743939 ] 

Devaraj Das edited comment on HBASE-8409 at 8/19/13 4:02 PM:
-------------------------------------------------------------

Yes it seems we need to go over the patch again. In 0.95.x I am sure we didn't apply any change to security.rb whereas in trunk we did.
The reason why I started looking is that the universal grant command (grant 'bob', 'RWX') does not work in 0.95.x. It NPEs out saying that "TableName cannot be null". I believe part (or maybe all) of the reason is that the security.rb changes have not been applied to 0.95.x.
                
      was (Author: devaraj):
    Yes it seems we need to go over the patch again. In 0.95.x I am sure we didn't apply any change to security.rb whereas in trunk we did.
The reason why I started looking is that the universal grant command not working in 0.95.x (grant 'bob', 'RWX') does not work in 0.95.x. It NPEs out saying that "TableName cannot be null". I believe part (or maybe all) of the reason is that the security.rb changes have not been applied to 0.95.x.
                  
> Security support for namespaces
> -------------------------------
>
>                 Key: HBASE-8409
>                 URL: https://issues.apache.org/jira/browse/HBASE-8409
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Francis Liu
>            Assignee: Vandana Ayyalasomayajula
>            Priority: Blocker
>             Fix For: 0.98.0, 0.95.2
>
>         Attachments: 8409_095.txt, HBASE-8049_trunk.patch, HBASE-8409_2.patch, HBASE-8409_3.patch, HBASE-8409_4.patch, TestNamespaceUpgrade.tgz
>
>
> This task adds the security piece to the namespace feature. The work related to migration of the existing acl table to the new namespace is remaining and will be completed in the follow up patch. Permissions can be granted to a namespace by the hbase admin, by appending '@' to the namespace name. A user with write or admin permissions on a given namespace can create tables in that namespace. The other privileges (R, X, C ) do not have any special meaning w.r.t namespaces.  Any users of hbase can list tables in a namespace.
>  
> The following commands can only be executed by HBase admins.
> 1. Grant privileges for user on Namespace.
> 2. Revoke privileges for user on Namespace
> Grant Command:
> hbase> grant 'tenant-A' 'W' '@N1'
>  In the above example, the command will grant the user 'tenant-A' write privileges for a namespace named "N1".
> Revoke Command:
> hbase> revoke 'tenant-A''@N1'
>  In the above example, the command will revoke  all privileges from user 'tenant-A' for namespace named "N1".
> Lets see an example on how privileges work with namespaces.
>  
> User "Mike" request for a namespace named "hbase_perf" with the hbase admin.
>       whoami: hbase
>       hbase shell >> namespace_create 'hbase_perf'
>       hbase shell >> grant 'mike', 'W', '@hbase_perf'
> Mike creates two tables "table20" and "table50" in the above workspace.
>       whoami: mike
>       hbase shell >> create 'hbase_perf.table20', 'family1'
>       hbase shell >> create 'hbase_perf.table50', 'family1'
>       Note: As Mike was able to create tables 'hbase_perf.table20', 'hbase_perf.table50', he becomes the owner of those tables. 
>       This means he has "RWXCA" perms on those tables.
> Another team member of Mike, Alice wants also to share the same workspace "hbase_perf". HBase admin grants Alice also permission to create tables in "hbase_perf" namespace.
>       whoami: hbase
>       hbase shell >> grant 'alice', 'W', '@hbase_perf'
> Now Alice can create new tables under "hbase_perf" namespace, but cannot read,write,alter,delete existing tables in the namespace.
>  
>       whoami: alice
>       hbase shell >> namespace_list_tables 'hbase_perf'
>                      hbase_perf.table20
>                      hbase_perf.table50
>       hbase shell >> scan 'hbase_perf.table20'
>                      AccessDeniedException  
>  
> If Alice wants to read or write to existing tables in the "hbase_perf" namespace, hbase admins need to explicitly grant permission.
>  
>       whoami: hbase
>       hbase shell >> grant 'alice', 'RW', 'hbase_perf.table20'
>       hbase shell >> grant 'alice', 'RW', 'hbase_perf.table50'

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira