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From "shanyu zhao (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-13888) Hive shims impersonate the same user if HADOOP_USER_NAME is the current user
Date Sun, 29 May 2016 06:37:12 GMT
shanyu zhao created HIVE-13888:
----------------------------------

             Summary: 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


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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