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https://issues.apache.org/jira/browse/HADOOP-16547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16924403#comment-16924403
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Steve Loughran commented on HADOOP-16547:
-----------------------------------------
more: to get to this you have to have set the fs.s3a.s3guard.ddb.region
property, or provide the -region option, otherwise the FS is instantiated to
work out the region.
> s3guard prune command doesn't get AWS auth chain from FS
> --------------------------------------------------------
>
> Key: HADOOP-16547
> URL: https://issues.apache.org/jira/browse/HADOOP-16547
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.3.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Major
>
> s3guard prune command doesn't get AWS auth chain from any FS, so it just
> drives the DDB store from the conf settings. If S3A is set up to use
> Delegation tokens then the DTs/custom AWS auth sequence is not picked up, so
> you get an auth failure.
> Fix:
> # instantiate the FS before calling initMetadataStore
> # review other commands to make sure problem isn't replicated
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