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Date: Wed, 24 Oct 2012 14:34:12 +0000 (UTC)
From: "Daryn Sharp (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HADOOP-8965) Allow client to specify internal
 authentication
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     [ https://issues.apache.org/jira/browse/HADOOP-8965?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daryn Sharp updated HADOOP-8965:
--------------------------------

    Attachment: HADOOP-8965.example.patch

Barebones patch to demonstrate possible ipc client changes to force use of tokens in SIMPLE auth.

In conjunction with HDFS-4056, I'll add another conditional for whether to look for tokens.
                
> Allow client to specify internal authentication
> -----------------------------------------------
>
>                 Key: HADOOP-8965
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8965
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: ipc
>    Affects Versions: 1.0.0, 0.23.0, 2.0.0-alpha, 3.0.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>         Attachments: HADOOP-8965.example.patch
>
>
> The RPC client currently uses a token if present, else it falls back to authentication.  This creates an ambiguity in the client if SIMPLE auth is allowed to use tokens.  A task will continue to run if the task loses its tokens because it will fallback to SIMPLE auth - this would be a bug.  There should be a means to specify that tasks must use tokens to avoid the ambiguity.

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