Thejas M Nair created HIVE-4470:
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             Summary: HS2 should disable local query execution
                 Key: HIVE-4470
                 URL: https://issues.apache.org/jira/browse/HIVE-4470
             Project: Hive
          Issue Type: Bug
          Components: HiveServer2
            Reporter: Thejas M Nair


Hive can run queries in local mode (instead of using a cluster), if the size is 
small. This happens when "hive.exec.mode.local.auto" is set to true.

This would affect the stability of the hive server2 node, if you have heavy 
query processing happening on it. Bugs in udfs triggered by a bad record can 
bring down the server. 
By default, HS2 should set these parameters to disallow local execution or send 
and error message if user tries to set these.


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