[ 
https://issues.apache.org/jira/browse/TAJO-1802?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14727103#comment-14727103
 ] 

Hudson commented on TAJO-1802:
------------------------------

SUCCESS: Integrated in Tajo-master-build #825 (See 
[https://builds.apache.org/job/Tajo-master-build/825/])
TAJO-1802: PythonScriptEngine copies controller and tajo util whenever it is 
initialized. (jihoonson: rev ace0480feacab917e6c73dd37314994050ab6207)
* tajo-core/src/main/java/org/apache/tajo/worker/TajoWorker.java
* 
tajo-plan/src/main/java/org/apache/tajo/plan/function/python/PythonScriptEngine.java
* tajo-core/src/main/java/org/apache/tajo/master/exec/QueryExecutor.java
* CHANGES
* 
tajo-plan/src/main/java/org/apache/tajo/plan/exprrewrite/rules/ConstantFolding.java
* tajo-core/src/main/java/org/apache/tajo/master/TajoMaster.java
* tajo-core/src/main/resources/python/controller.py


> 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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