Make sure that in the register, you use the absolute path. Also make sure that
both the jython.jar and udf asre in your classpath. A good test is to do that,
then try and register in local mode. If that works, then try on your cluster.
Always making sure that your classpath has those details
Sent via BlackBerry
-----Original Message-----
From: <deepak....@wipro.com>
Date: Fri, 7 Jan 2011 19:57:16
To: <user@pig.apache.org>
Reply-To: user@pig.apache.org
Subject: Python UDF Internal Error when Registering
Hi,
I get an error when I try to register my python udf. Why is this happening?
grunt> Register 'udf.py' USING jython AS udf
2011-01-07 19:39:31,818 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
2998: Unhandled internal error. org/python/util/PythonInterpreter
The Logs say the following:
Pig Stack Trace
---------------
ERROR 2998: Unhandled internal error. org/python/util/PythonInterpreter
java.lang.NoClassDefFoundError: org/python/util/PythonInterpreter
at
org.apache.pig.scripting.jython.JythonScriptEngine$Interpreter.<clinit>(JythonScriptEngine.java:54)
at
org.apache.pig.scripting.jython.JythonScriptEngine.registerFunctions(JythonScriptEngine.java:105)
at org.apache.pig.PigServer.registerCode(PigServer.java:507)
at
org.apache.pig.tools.grunt.GruntParser.processRegister(GruntParser.java:381)
at
org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:421)
at
org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:165)
at
org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:141)
at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:90)
at org.apache.pig.Main.run(Main.java:510)
at org.apache.pig.Main.main(Main.java:107)
Caused by: java.lang.ClassNotFoundException: org.python.util.PythonInterpreter
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
... 10 more
================================================================================
Any ideas?
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