[jira] [Updated] (HAWQ-1036) Support user impersonation in PXF for external tables

["Radar Lei (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HAWQ-1036?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Radar Lei updated HAWQ-1036:
----------------------------
    Fix Version/s:     (was: 2.4.0.0-incubating)
                   2.3.0.0-incubating

> Support user impersonation in PXF for external tables
> -----------------------------------------------------
>
>                 Key: HAWQ-1036
>                 URL: https://issues.apache.org/jira/browse/HAWQ-1036
>             Project: Apache HAWQ
>          Issue Type: New Feature
>          Components: PXF, Security
>            Reporter: Alastair "Bell" Turner
>            Assignee: Alexander Denissov
>            Priority: Critical
>             Fix For: 2.3.0.0-incubating
>
>         Attachments: HAWQ_Impersonation_rationale.txt
>
>
> Currently HAWQ executes all queries as the user running the HAWQ process or the user running the PXF process, not as the user who issued the query via ODBC/JDBC/... This restricts the options available for integrating with existing security defined in HDFS, Hive, etc.
> Impersonation provides an alternative Ranger integration (as discussed in HAWQ-256 ) for consistent security across HAWQ, HDFS, Hive...
> Implementation High Level steps:
> 1) HAWQ needs to integrate with existing authentication components for the user who invokes the query
> 2) HAWQ needs to pass down the user id to PXF after authorization is passed 
> 3) PXF needs to do "run as ..." the user id to execute APIs to access Hive/HDFS 



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