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Posted to issues@tajo.apache.org by "Jihoon Son (JIRA)" <ji...@apache.org> on 2015/09/02 11:28:46 UTC
[jira] [Resolved] (TAJO-1802) PythonScriptEngine copies controller
and tajo util whenever it is initialized
[ https://issues.apache.org/jira/browse/TAJO-1802?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jihoon Son resolved TAJO-1802.
------------------------------
Resolution: Fixed
> 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
>
> Attachments: TAJO-1802.patch, TAJO-1802_2.patch
>
>
> 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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