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