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https://issues.apache.org/jira/browse/HDFS-5796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14215533#comment-14215533
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Arun Suresh commented on HDFS-5796:
-----------------------------------
So now, when the handler detects requests are coming from a browser (based on
user agent), it will not initiate SPNEGO handshake and will return an
{{AuthenticationToken}} for the configured HTTP kerberos principal
> The file system browser in the namenode UI requires SPNEGO.
> -----------------------------------------------------------
>
> Key: HDFS-5796
> URL: https://issues.apache.org/jira/browse/HDFS-5796
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.3.0
> Reporter: Kihwal Lee
> Assignee: Arun Suresh
> Attachments: HDFS-5796.1.patch
>
>
> After HDFS-5382, the browser makes webhdfs REST calls directly, requiring
> SPNEGO to work between user's browser and namenode. This won't work if the
> cluster's security infrastructure is isolated from the regular network.
> Moreover, SPNEGO is not supposed to be required for user-facing web pages.
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