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https://issues.apache.org/jira/browse/HDFS-5796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14351156#comment-14351156
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Vinod Kumar Vavilapalli commented on HDFS-5796:
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Hey everyone,
I've been trying to understand the problem here, but it is a big wall of text.
It'll be great if someone can help me. It seems like
# when security is enabled, WebHDFS by default picks up SPNEGO +
KerberosAuthFilter. So the UI works, but only when the browser is launched
after a kinit. If I don't do a kinit, I cannot browse files through the UI -
this is the loss of functionality that is being discussed here?
# with HDFS-5716, you can turn the KerberosAuthFilter off and replace it with
PseudoAuthFilter, but then the UI as well as applications always thinks you are
dr.who. So, I guess this is not acceptable?
# Is the patch trying to add (back) in a way to use KerberosAuthFilter for
regular applications but use Dr.Who for browsers? And that is a security
concern, so we don't want to put it back?
Going back to the title, "The file system browser in the namenode UI requires
SPNEGO.". Seems like with HDFS-5716, you can set your own filter and so the
discussion is really about the defaults?
Trying to gauge its priority for 2.7. Thanks.
> 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: 2.5.0
> Reporter: Kihwal Lee
> Assignee: Arun Suresh
> Priority: Blocker
> Attachments: HDFS-5796.1.patch, HDFS-5796.1.patch, HDFS-5796.2.patch,
> HDFS-5796.3.patch, HDFS-5796.3.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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