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Date: Wed, 14 Jan 2015 18:27:35 +0000 (UTC)
From: "Andrew Purtell (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12759809.1417809062000.83166.1421260055428@Atlassian.JIRA>
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Subject: [jira] [Commented] (HBASE-12644) Visibility Labels: issue with
 storing super users in labels table
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    [ https://issues.apache.org/jira/browse/HBASE-12644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14277386#comment-14277386 ] 

Andrew Purtell commented on HBASE-12644:
----------------------------------------

I assume you want the 0.98 patch applied. This feature is experimental in 0.98 so the considerations explained in the release notes are sufficient. Applying now.


> Visibility Labels: issue with storing super users in labels table
> -----------------------------------------------------------------
>
>                 Key: HBASE-12644
>                 URL: https://issues.apache.org/jira/browse/HBASE-12644
>             Project: HBase
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 0.98.8, 0.99.2
>            Reporter: Jerry He
>            Assignee: Jerry He
>             Fix For: 1.0.0, 2.0.0
>
>         Attachments: 12644-0.98.patch, HBASE-12644-master-v2.patch, HBASE-12644-master-v3.patch, HBASE-12644-master.patch
>
>
> Super users have all the permissions for ACL and Visibility labels.
> They are defined in hbase-site.xml.
> Currently in VisibilityController, we persist super user with their system permission in hbase:labels.
> This makes change in super user difficult.
> There are two issues:
> In the current DefaultVisibilityLabelServiceImpl.addSystemLabel, we only add super user when we initially create the 'system' label.
> No additional update after that even if super user changed. See code for details.
>  
> Additionally, there is no mechanism to remove any super user from the labels table.
>  
> We probably should not persist super users in the labels table.
> They are in hbase-site.xml and can just stay in labelsCache and used from labelsCache after retrieval by Visibility Controller.


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