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From "Kan Zhang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6543) Allow authentication-enabled RPC clients to connect to authentication-disabled RPC servers
Date Thu, 11 Feb 2010 01:02:29 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6543?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12832335#action_12832335
] 

Kan Zhang commented on HADOOP-6543:
-----------------------------------

Attached a patch for review. When a RPC server is configured to do simple auth and a client
proposes Kerberos or DIGEST authentication, the server sends back a message so that client
can switch to simple auth. A twist is that the server needs to ignore the initial SASL message
that the client has already sent and continue with simple auth.

> Allow authentication-enabled RPC clients to connect to authentication-disabled RPC servers

> -------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-6543
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6543
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: ipc, security
>            Reporter: Kan Zhang
>            Assignee: Kan Zhang
>         Attachments: c6543-05.patch
>
>
> This is useful when one has multiple clusters (of the same release version), some have
authentication turned on and some off, and one needs to move data between them.

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