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https://issues.apache.org/jira/browse/DRILL-4281?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15174839#comment-15174839
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ASF GitHub Bot commented on DRILL-4281:
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Github user jacques-n commented on the pull request:
https://github.com/apache/drill/pull/400#issuecomment-191014420
I think it would be better to have a single delegation setting that is json
that describes the entirety of what we need to express. I think that will be
much clearer than a set of multiple separate properties.
> Drill should support inbound impersonation
> ------------------------------------------
>
> Key: DRILL-4281
> URL: https://issues.apache.org/jira/browse/DRILL-4281
> Project: Apache Drill
> Issue Type: Improvement
> Reporter: Keys Botzum
> Assignee: Sudheesh Katkam
> Labels: doc-impacting, security
>
> Today Drill supports impersonation *to* external sources. For example I can
> authenticate to Drill as myself and then Drill will access HDFS using
> impersonation
> In many scenarios we also need impersonation to Drill. For example I might
> use some front end tool (such as Tableau) and authenticate to it as myself.
> That tool (server version) then needs to access Drill to perform queries and
> I want those queries to run as myself, not as the Tableau user. While in
> theory the intermediate tool could store the userid & password for every user
> to the Drill this isn't a scalable or very secure solution.
> Note that HS2 today does support inbound impersonation as described here:
> https://issues.apache.org/jira/browse/HIVE-5155
> The above is not the best approach as it is tied to the connection object
> which is very coarse grained and potentially expensive. It would be better if
> there was a call on the ODBC/JDBC driver to switch the identity on a existing
> connection. Most modern SQL databases (Oracle, DB2) support such function.
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