[jira] [Commented] (HDFS-2617) Replaced Kerberized SSL for image transfer and fsck with SPNEGO-based solution

["Alejandro Abdelnur (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDFS-2617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13224910#comment-13224910 ] 

Alejandro Abdelnur commented on HDFS-2617:
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@Jakob, approach seems reasonable. A couple of things

* The AuthenticatedURL.Token could be created once and then reused, then SPNEGO will be triggered only when the token expires instead on every request (if I understand correctly, the default freq is 1hr, thus what you are doing it is not a biggy).

* Why do we need to keep the SSL HTTP configuration?

Thxs
                
> 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
>            Reporter: Jakob Homan
>            Assignee: Jakob Homan
>         Attachments: HDFS-2617-a.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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