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From "Daniel Dai (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-2559) Embedded pig in python; invoking sys.exit(0) causes script failure
Date Thu, 01 Mar 2012 23:00:57 GMT

     [ https://issues.apache.org/jira/browse/PIG-2559?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Daniel Dai updated PIG-2559:
----------------------------

       Resolution: Fixed
    Fix Version/s: 0.11
                   0.10
         Assignee: Vivek Padmanabhan
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

Unit test pass. test-patch:
     [exec] -1 overall.  
     [exec] 
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec] 
     [exec]     +1 tests included.  The patch appears to include 3 new or modified tests.
     [exec] 
     [exec]     -1 javadoc.  The javadoc tool appears to have generated 1 warning messages.
     [exec] 
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler
warnings.
     [exec] 
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
     [exec] 
     [exec]     -1 release audit.  The applied patch generated 533 release audit warnings
(more than the trunk's current 530 warnings).

javadoc and release audit warning is unrelated. 

Patch committed to 0.10/trunk. Thanks Vivek!
                
> Embedded pig in python; invoking sys.exit(0) causes script failure
> ------------------------------------------------------------------
>
>                 Key: PIG-2559
>                 URL: https://issues.apache.org/jira/browse/PIG-2559
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.9.1, 0.10
>            Reporter: Vivek Padmanabhan
>            Assignee: Vivek Padmanabhan
>             Fix For: 0.10, 0.11
>
>         Attachments: PIG-2559_1.patch
>
>
> In embedded pig in python, if I have a sys.exit (0) the script always fails and returns
exit code as 6.
> While it is agreeable that Pig will reinterpret the exit code from Python, sys.exit(0)
should be considered as a normal termination.
> A sample code;
> {code}
> #!/usr/bin/python
> from org.apache.pig.scripting import Pig
> import sys
> if 1 == 2:
>         sys.exit(1)
> else:
>         sys.exit(0)
> {code}
> Exception from Pig
> {code}
> org.apache.pig.backend.executionengine.ExecException: ERROR 1121: Python Error. Traceback
(most recent call last):
>   File "a.py", line 9, in <module>
>     sys.exit(0)
> SystemExit: 0
> 	at org.apache.pig.scripting.jython.JythonScriptEngine$Interpreter.execfile(JythonScriptEngine.java:107)
> 	at org.apache.pig.scripting.jython.JythonScriptEngine.load(JythonScriptEngine.java:210)
> 	at org.apache.pig.scripting.jython.JythonScriptEngine.main(JythonScriptEngine.java:202)
> 	at org.apache.pig.scripting.ScriptEngine.run(ScriptEngine.java:275)
> 	at org.apache.pig.Main.runEmbeddedScript(Main.java:925)
> 	at org.apache.pig.Main.run(Main.java:516)
> 	at org.apache.pig.Main.main(Main.java:111)
> Caused by: Traceback (most recent call last):
>   File "a.py", line 9, in <module>
>     sys.exit(0)
> SystemExit: 0
> 	at org.python.core.PyException.fillInStackTrace(PyException.java:70)
> 	at java.lang.Throwable.<init>(Throwable.java:181)
> 	at java.lang.Exception.<init>(Exception.java:29)
> 	at java.lang.RuntimeException.<init>(RuntimeException.java:32)
> 	at org.python.core.PyException.<init>(PyException.java:46)
> 	at org.python.core.PyException.<init>(PyException.java:43)
> 	at org.python.core.PySystemState.exit(PySystemState.java:1206)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:175)
> 	at org.python.core.PyObject.__call__(PyObject.java:355)
> 	at org.python.core.PyMethod.__call__(PyMethod.java:215)
> 	at org.python.core.PyMethod.instancemethod___call__(PyMethod.java:221)
> 	at org.python.core.PyMethod.__call__(PyMethod.java:206)
> 	at org.python.core.PyObject.__call__(PyObject.java:397)
> 	at org.python.core.PyObject.__call__(PyObject.java:401)
> 	at org.python.pycode._pyx0.f$0(a.py:9)
> 	at org.python.pycode._pyx0.call_function(a.py)
> 	at org.python.core.PyTableCode.call(PyTableCode.java:165)
> 	at org.python.core.PyCode.call(PyCode.java:18)
> 	at org.python.core.Py.runCode(Py.java:1197)
> 	at org.python.util.PythonInterpreter.execfile(PythonInterpreter.java:166)
> 	at org.apache.pig.scripting.jython.JythonScriptEngine$Interpreter.execfile(JythonScriptEngine.java:104)
> 	... 6 more
> {code}

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