shanyu zhao created HIVE-13888:
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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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