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Posted to issues@tajo.apache.org by "Jihoon Son (JIRA)" <ji...@apache.org> on 2015/08/26 04:28:46 UTC

[jira] [Created] (TAJO-1802) PythonScriptEngine copies controller and tajo util whenever it is initialized

Jihoon Son created TAJO-1802:
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             Summary: PythonScriptEngine copies controller and tajo util whenever it is initialized
                 Key: TAJO-1802
                 URL: https://issues.apache.org/jira/browse/TAJO-1802
             Project: Tajo
          Issue Type: Bug
          Components: Function/UDF
            Reporter: Jihoon Son
            Assignee: Jihoon Son
             Fix For: 0.11.0


In the current implementation, python script files are copied and deleted whenever a task is launched and stopped. This incurs two problems.
* Frequent copy of script files degrades the overall performance.
* Among python scripts, tajo_util.py is shared by multiple tasks of a worker. This incurs I/O problem during unit tests because the shared file is also removed when a task is stopped.



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