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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 19:14:13 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8999?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13496438#comment-13496438

Daryn Sharp commented on HADOOP-8999:

The general problem is present in branch-1, but won't be exposed unless other SASL methods
are added to branch-1.
> 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
>             Fix For: 3.0.0, 2.0.3-alpha
>         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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