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https://issues.apache.org/jira/browse/HADOOP-15694?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16597993#comment-16597993
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Sean Mackrory commented on HADOOP-15694:
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Attaching a patch that's basically what I want to do. Feedback welcome, but I'm 
not entirely finished with this so I'm not proposing it for inclusion yet. 
Integration tests are running now, but so far so good. I also still need to add 
my own tests and do my own code review for silly mistakes, but I was able to 
connect to ABFS by just specifying "fs.azure.account.key" without any account 
context (although that'll be more useful with ABFS), and that's basically what 
I wanted to achieve.

> ABFS: Allow OAuth credentials to not be tied to accounts
> --------------------------------------------------------
>
>                 Key: HADOOP-15694
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15694
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Sean Mackrory
>            Assignee: Sean Mackrory
>            Priority: Major
>         Attachments: HADOOP-15694.001.patch
>
>
> Now that there's OAuth support, it's possible to have a notion of identity 
> that's distinct from the account itself. If a cluster is configured via OAuth 
> with it's own identity, it's likely operators will want to use that identity 
> regardless of which storage account a job uses.
> So OAuth configs right now (and probably others) are looked up with 
> <config_key>.<account>. I propose that we add a function for looking up these 
> configs that returns an account-specific value if it exists, but in the event 
> it does not will also try to return <config_key>, if that exists.
> I can work on a patch for this if nobody has any objections.



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