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https://issues.apache.org/jira/browse/HDFS-4542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13591107#comment-13591107
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Daryn Sharp commented on HDFS-4542:
-----------------------------------
Sorry Alejandro, I read your comment backwards and essentially repeated what
you said. Where do you think I'm doing the wrong thing that the test aren't
catching?
> Webhdfs doesn't support secure proxy users
> ------------------------------------------
>
> Key: HDFS-4542
> URL: https://issues.apache.org/jira/browse/HDFS-4542
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: webhdfs
> Affects Versions: 0.23.0, 2.0.0-alpha, 3.0.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Blocker
> Attachments: HDFS-4542.patch
>
>
> Webhdfs doesn't ever send the {{DoAsParam}} in the REST calls for proxy
> users. Proxy users on a non-secure cluster "work" because the server sees
> them as the effective user, not a proxy user, which effectively bypasses the
> proxy authorization checks. On secure clusters, it doesn't work at all in
> part due to wrong ugi being used for the connection (HDFS-3367), but then it
> fails because the effective user tries to use a non-proxy token for the real
> user.
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