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https://issues.apache.org/jira/browse/HADOOP-10211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13902104#comment-13902104
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Daryn Sharp commented on HADOOP-10211:
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+1 Nice!
> Enable RPC protocol to negotiate SASL-QOP values between clients and servers
> ----------------------------------------------------------------------------
>
> Key: HADOOP-10211
> URL: https://issues.apache.org/jira/browse/HADOOP-10211
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Affects Versions: 2.2.0
> Reporter: Benoy Antony
> Assignee: Benoy Antony
> Attachments: HADOOP-10211.patch, HADOOP-10211.patch,
> HADOOP-10211.patch, HADOOP-10211.patch, HADOOP-10211.patch,
> HADOOP-10221.sample
>
>
> SASL allows different types of protection are referred to as the quality of
> protection (qop). It is negotiated between the client and server during the
> authentication phase of the SASL exchange. Currently hadoop allows specifying
> a single QOP value via _hadoop.rpc.protection_.
> The enhancement enables a user to specify multiple QOP values -
> _authentication_, _integrity_, _privacy_ as a comma separated list via
> _hadoop.rpc.protection_
> The client and server can have different set of values for
> _hadoop.rpc.protection_ and they will negotiate to determine the QOP to be
> used for communication.
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