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https://issues.apache.org/jira/browse/HADOOP-9421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13658991#comment-13658991
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Sanjay Radia commented on HADOOP-9421:
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Junping, can you add code to ensure that an old sasl request will get a
response along the lines of "not right version protocol". For example, the rpc
layer responds with the old protocol format error message. This helps when
folks connect old client to new servers.
> Convert SASL to use ProtoBuf and add lengths for non-blocking processing
> ------------------------------------------------------------------------
>
> Key: HADOOP-9421
> URL: https://issues.apache.org/jira/browse/HADOOP-9421
> Project: Hadoop Common
> Issue Type: Sub-task
> Affects Versions: 2.0.3-alpha
> Reporter: Sanjay Radia
> Assignee: Junping Du
> Attachments: HADOOP-9421.patch
>
>
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