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From "Larry McCay (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14556) S3A to support Delegation Tokens
Date Tue, 27 Nov 2018 16:33:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16700677#comment-16700677
] 

Larry McCay commented on HADOOP-14556:
--------------------------------------

[~stevel@apache.org] - thanks for considering that!

In addition to a demo - it may also be helpful to provide a high level walkthrough of the
patch itself.

Just some landmarks and some indications of areas for which you would like more detailed
review - if that makes sense.

The demo would actually provide a bit of that as well as long as you include details of configuration
and discussion of the marshalling/unmarshalling requirements, etc.

> 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: 3.2.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Major
>         Attachments: HADOOP-14556-001.patch, HADOOP-14556-002.patch, HADOOP-14556-003.patch,
HADOOP-14556-004.patch, HADOOP-14556-005.patch, HADOOP-14556-007.patch, HADOOP-14556-008.patch,
HADOOP-14556-009.patch, HADOOP-14556-010.patch, HADOOP-14556-010.patch, HADOOP-14556-011.patch,
HADOOP-14556-012.patch, HADOOP-14556-013.patch, HADOOP-14556-014.patch, HADOOP-14556-015.patch,
HADOOP-14556-016.patch, HADOOP-14556-017.patch, HADOOP-14556-018a.patch, HADOOP-14556-019.patch,
HADOOP-14556-020.patch, HADOOP-14556-021.patch, HADOOP-14556.oath-002.patch, HADOOP-14556.oath.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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