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https://issues.apache.org/jira/browse/HDFS-12104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16078781#comment-16078781
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Xiaowei Zhu commented on HDFS-12104:
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+1, the patch looks good.
> libhdfs++: Make sure all steps in SaslProtocol end up calling AuthComplete
> ---------------------------------------------------------------------------
>
> Key: HDFS-12104
> URL: https://issues.apache.org/jira/browse/HDFS-12104
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Reporter: James Clampffer
> Assignee: James Clampffer
> Attachments: HDFS-12104.HDFS-8707.000.patch
>
>
> SaslProtocol provides an abstraction for stepping through the authentication
> challenge and response stages in the Cyrus SASL library by chaining callbacks
> together (next one is invoked when async io is done).
> To authenticate SaslProtocol::Authenticate is called, and when authentication
> is finished SaslProtocol::AuthComplete is called which invokes an
> authentication completion callback. There's a couple cases where the
> intermediate callbacks return without calling AuthComplete which breaks
> applications that take advantage of that callback.
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