Steve Loughran updated HADOOP-14556:
            Assignee: Steve Loughran
    Target Version/s: 3.2.0  (was: 3.1.0)
              Status: Open  (was: Patch Available)

> S3A to support Delegation Tokens
> --------------------------------
>                 Key: HADOOP-14556
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14556
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 2.8.1
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Major
>         Attachments: HADOOP-14556-001.patch, HADOOP-14556-002.patch
> S3A to support delegation tokens where
> * an authenticated client can request a token via 
> {{FileSystem.getDelegationToken()}}
> * Amazon's token service is used to request short-lived session secret & id; 
> these will be saved in the token and  marshalled with jobs
> * A new authentication provider will look for a token for the current user 
> and authenticate the user if found
> This will not support renewals; the lifespan of a token will be limited to 
> the initial duration. Also, as you can't request an STS token from a 
> temporary session, IAM instances won't be able to issue tokens.

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