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https://issues.apache.org/jira/browse/HDFS-2617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13419155#comment-13419155
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Daryn Sharp commented on HDFS-2617:
-----------------------------------
I would prefer compatibility by default, but a flag isn't the end of the world.
Can we pretty please merge this into branch-2? I know that's an unpopular
position, but we require at least client-side kssl compat on 2.x for hftp else
we are going to have a _very hard time_ migrating data from earlier grids.
Given recent webhdfs jiras, I think it's safe to say it's not yet hardened
enough to be suitable for mission-critical production environments. I'm
confident webhdfs will be shored up in 2.x, so kssl compat can be dropped in
future releases.
> Replaced Kerberized SSL for image transfer and fsck with SPNEGO-based solution
> ------------------------------------------------------------------------------
>
> Key: HDFS-2617
> URL: https://issues.apache.org/jira/browse/HDFS-2617
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: security
> Reporter: Jakob Homan
> Assignee: Jakob Homan
> Fix For: 1.2.0, 2.1.0-alpha
>
> Attachments: HDFS-2617-a.patch, HDFS-2617-b.patch,
> HDFS-2617-branch-1.patch, HDFS-2617-branch-1.patch, HDFS-2617-branch-1.patch,
> HDFS-2617-config.patch, HDFS-2617-trunk.patch, HDFS-2617-trunk.patch,
> HDFS-2617-trunk.patch, HDFS-2617-trunk.patch, hdfs-2617-1.1.patch
>
>
> The current approach to secure and authenticate nn web services is based on
> Kerberized SSL and was developed when a SPNEGO solution wasn't available. Now
> that we have one, we can get rid of the non-standard KSSL and use SPNEGO
> throughout. This will simplify setup and configuration. Also, Kerberized
> SSL is a non-standard approach with its own quirks and dark corners
> (HDFS-2386).
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