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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3113) httpfs does not support delegation tokens
Date Wed, 18 Jul 2012 20:01:35 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13417630#comment-13417630

Daryn Sharp commented on HDFS-3113:

Just to make sure I understand: WebHDFS client -> HttpFS -> SomeFS.  Is HttpFS acting
like a pure proxy and relaying the real token for SomeFS back to the client?  If so, what's
the purpose of the secret manager in httpfs?

Regarding token decoding, this:
ByteArrayInputStream buf = new ByteArrayInputStream(token.getIdentifier());
DataInputStream dis = new DataInputStream(buf);
DelegationTokenIdentifier id = new DelegationTokenIdentifier();
can be replaced with {{DelegationTokenIdentifier id = token.decodeIdentifier()}}

BTW, have you tested this with oozie to ensure proxy tokens work correctly?
> httpfs does not support delegation tokens
> -----------------------------------------
>                 Key: HDFS-3113
>                 URL: https://issues.apache.org/jira/browse/HDFS-3113
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>    Affects Versions: 0.23.3
>            Reporter: Alejandro Abdelnur
>            Assignee: Alejandro Abdelnur
>             Fix For: 0.24.0, 0.23.3
>         Attachments: HDFS-3113.patch, HDFS-3113.patch, HDFS-3113.patch, HDFS-3113.patch
> httpfs does not support calls to get/renew tokens nor delegation token authentication.

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