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Date: Tue, 3 Sep 2013 21:47:51 +0000 (UTC)
From: "John Vines (JIRA)" <jira@apache.org>
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Message-ID: <JIRA.12666721.1378231462060.73982.1378244871755@arcas>
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Subject: [jira] [Commented] (ACCUMULO-1680) Atomic add and remove of
 authorizations
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    [ https://issues.apache.org/jira/browse/ACCUMULO-1680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13757121#comment-13757121 ] 

John Vines commented on ACCUMULO-1680:
--------------------------------------

In lieu of new shell commands, another option could be to support +auth and -auth for add/remove.
                
> Atomic add and remove of authorizations
> ---------------------------------------
>
>                 Key: ACCUMULO-1680
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1680
>             Project: Accumulo
>          Issue Type: New Feature
>          Components: client, master, shell
>            Reporter: Chad Hardin
>            Assignee: Chad Hardin
>            Priority: Minor
>              Labels: newbie, patch
>             Fix For: 1.6.0
>
>
> Currently, adding and removing an auth presents a race condition because of the two separate calls required to get, modify, then set the authorizations for a user.  
> Instead, it should be possible to add or remove one or more auths without there being a race condition.
> I also propose adding two new commands to the shell to expose this functionality.  
> It appears to be that this is not a difficult feature to add, by making use of  ZooReaderWriter.mutate() in the FATE packages.  I think the bulk of the work will be in changing the various interfaces (shell and programmatically) to expose this functionality.
> I would like to do this work and I'm a accumulo newbie, so any guidance would be appreciated.

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