Hyunsik Choi created TAJO-664:
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             Summary: TajoConf parameters should be verified at startup time
                 Key: TAJO-664
                 URL: https://issues.apache.org/jira/browse/TAJO-664
             Project: Tajo
          Issue Type: Improvement
          Components: tajo master
            Reporter: Hyunsik Choi


TajoMaster loads the system configuration at startup. But, users can set wrong 
config values. For example, if some config is negative value, it can affect 
significantly the performance of the Tajo instance. We should add some 
verification for all configs of TajoConf.



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