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From "Robert Hou (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-4281) Drill should support inbound impersonation
Date Tue, 25 Jul 2017 18:10:00 GMT

    [ https://issues.apache.org/jira/browse/DRILL-4281?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16100468#comment-16100468

Robert Hou commented on DRILL-4281:

ODBC is verified.  There is a new configuration parameter, DelegationUID.  This can be set
in the odbc.ini file.

> 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
>             Fix For: 1.6.0
> 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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