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https://issues.apache.org/jira/browse/HADOOP-16354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16860581#comment-16860581
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Prabhu Joseph commented on HADOOP-16354:
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[~eyang] Missed to test with doas, was testing with all other combinations.
With doas set for webhdfs requests without delegation token, impersonation
logic is called twice - one at {{ProxyUserAuthenticationFilter}} and then at
{{JspHelper#getUgi}}. Have ignored calling impersonation if the remote user is
same as doas user.
> Enable AuthFilter as default for WebHdfs
> ----------------------------------------
>
> Key: HADOOP-16354
> URL: https://issues.apache.org/jira/browse/HADOOP-16354
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: security
> Affects Versions: 3.3.0
> Reporter: Prabhu Joseph
> Assignee: Prabhu Joseph
> Priority: Major
> Attachments: HADOOP-16354-001.patch, HADOOP-16354-002.patch,
> HADOOP-16354-003.patch, HADOOP-16354-004.patch, HADOOP-16354-005.patch
>
>
> HADOOP-16314 provides an generic option to configure
> ProxyUserAuthenticationFilterInitializer (Kerberos + doAs support) for all
> the services. If this is not configured, AuthenticationFIlter is used for
> NameNode UI and WebHdfs. Will enable AuthFilter as default for WebHdfs so
> that it is backward compatible.
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