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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8999) SASL negotiation is flawed
Date Tue, 13 Nov 2012 14:52:13 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8999?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13496232#comment-13496232
] 

Daryn Sharp commented on HADOOP-8999:
-------------------------------------

I forgot to mention that tests are not included because the current ones are sufficient to
prove this change does not break anything.  When the PLAIN client is activated it will show
that the change works.
                
> SASL negotiation is flawed
> --------------------------
>
>                 Key: HADOOP-8999
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8999
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: ipc
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>         Attachments: HADOOP-8999.patch
>
>
> The RPC protocol used for SASL negotiation is flawed.  The server's RPC response contains
the next SASL challenge token, but a SASL server can return null (I'm done) or a N-many byte
challenge.  The server currently will not send a RPC success response to the client if the
SASL server returns null, which causes the client to hang until it times out.

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