Jiayi Liu created RANGER-2893:
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Summary: show grant on database xxx will fail in ranger hive plugin
Key: RANGER-2893
URL: https://issues.apache.org/jira/browse/RANGER-2893
Project: Ranger
Issue Type: Bug
Components: plugins
Affects Versions: 2.0.0
Reporter: Jiayi Liu
Fix For: 2.1.0
When we enable Ranger Hive plugin, show grant at the database level will fail,
and throw the exception "RangerHiveAuthorizer.showPrivileges() only supports
SHOW PRIVILEGES for Hive resources and not user level". Although we are not
showing grants at the user level, but at the database level.
For example,
{code:sql}
show grant on database default;
{code}
and the exception,
{code:java}
ERROR : FAILED: Execution Error, return code 1 from
org.apache.hadoop.hive.ql.exec.DDLTask. RangerHiveAuthorizer.showPrivileges()
error: RangerHiveAuthorizer.showPrivileges() only supports SHOW PRIVILEGES for
Hive resources and not user level
{code}
The reason is that the parameter privObj.objectName passed to
RangerHiveAuthorizer.showPrivileges is null when show grant at the datatabase
level, and the exception "RangerHiveAuthorizer.showPrivileges() only supports
SHOW PRIVILEGES for Hive resources and not user level" will be thrown when
objectName is null. The function is normal when the type of privObj is TABLE,
because the dbName is the db name and the objectName is the table name.
We should check whether the dbName is null instead of check the objectName. We
alse need to fix the objectName to "*" when it is null to represent all tables
in the db in HivePrivilegeInfo.
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