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https://issues.apache.org/jira/browse/ACCUMULO-4135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15135644#comment-15135644
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ASF GitHub Bot commented on ACCUMULO-4135:
------------------------------------------

GitHub user joshelser opened a pull request:

    https://github.com/apache/accumulo/pull/67

    ACCUMULO-4135 Add impersonation configuration keys which don't put th…

    …e principal in the key.
    
    Apparently, Ambari has a very hard time handling configuration keys that 
have '/'
    characters in them. As such, this breaks the impersonation config keys, as 
they
    will near always have a '/' in them (e.g. primary/instance@REALM). This is 
sad.
    
    This commit introduces an alternate strategy for specifying the same 
configuration
    items but only using the values.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/joshelser/accumulo 
ACCUMULO-4135-impersonation-config

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/accumulo/pull/67.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #67
    
----
commit c43bf64e87d9e095f0a1a2edb55439d806fd96f8
Author: Josh Elser <[email protected]>
Date:   2016-02-06T06:57:54Z

    ACCUMULO-4135 Add impersonation configuration keys which don't put the 
principal in the key.
    
    Apparently, Ambari has a very hard time handling configuration keys that 
have '/'
    characters in them. As such, this breaks the impersonation config keys, as 
they
    will near always have a '/' in them (e.g. primary/instance@REALM). This is 
sad.
    
    This commit introduces an alternate strategy for specifying the same 
configuration
    items but only using the values.

----


> Change Kerberos impersonation configuration keys
> ------------------------------------------------
>
>                 Key: ACCUMULO-4135
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-4135
>             Project: Accumulo
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.7.0
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>            Priority: Blocker
>             Fix For: 1.7.1, 1.8.0
>
>
> For the user impersonation support with Kerberos, we need to be able to 
> represent the following:
> For userA, what other users may userA "act" as and from what host(s) may 
> userA do this from.
> This was represented as the following in accumulo-site.xml:
> * {{<prefix>.userA.users}}=user1,user2,user3...
> * {{<prefix>.userA.hosts}}=fqdn1,fqdn2,fqdn3...
> Because we're dealing with Kerberos, "userA" is actually something like 
> "primary/instance@REALM".
> I've recently found out that Ambari doesn't like this and apparently it would 
> be prohibitively difficult to change it there (urlencode, what?). I'll add 
> some new configuration properties here that change the structure so that 
> there are options for users to configure this through all deployment 
> mechanisms.



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