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From "shanyu zhao (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-13888) Hive shims impersonate the same user if HADOOP_USER_NAME is the current user
Date Sun, 29 May 2016 06:39:13 GMT

     [ https://issues.apache.org/jira/browse/HIVE-13888?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

shanyu zhao reassigned HIVE-13888:
----------------------------------

    Assignee: shanyu zhao

> Hive shims impersonate the same user if HADOOP_USER_NAME is the current user
> ----------------------------------------------------------------------------
>
>                 Key: HIVE-13888
>                 URL: https://issues.apache.org/jira/browse/HIVE-13888
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 1.2.1
>            Reporter: shanyu zhao
>            Assignee: shanyu zhao
>         Attachments: HIVE-13888.patch
>
>
> Hive shims provides a getUGI() method, which creates proxy user for impersonation if
HADOOP_USER_NAME is present in environment. If HADOOP_USER_NAME equals to current login user,
it is not necessary to create a proxy user.
> It is troublesome in a Hadoop cluster where impersonation is not allowed, and one tries
to run hive code in a container where HADOOP_USER_NAME is set. RM will throw Exception: User
XXX is not allowed to impersonate XXX.



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