[MAHOUT-1367] WikipediaXmlSplitter --> Exception in thread "main" java.lang.NullPointerException

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.8
• Fix Version/s: 0.9

Environment

ubuntu

• Assignee: Suneel Marthi
• Reporter: ollagnier
• Created: 29/Nov/13 14:20
• Updated: 03/Feb/14 07:57
• Resolved: 01/Dec/13 12:23

Description

Hi !

When I run this command : $MAHOUT_HOME/bin/mahout org.apache.mahout.text.wikipedia.WikipediaXmlSplitter -d frwiki-latest-pages-articles.xml.bz2 -o wikipedia-xml-chunks -c 100

I have this error :

MAHOUT-JOB: /home/ollagnier/Documents/tools/mahout-distribution-0.8/bin/trunk/examples/target/mahout-examples-0.9-SNAPSHOT-job.jar
13/11/29 14:51:08 WARN driver.MahoutDriver: No org.apache.mahout.text.wikipedia.WikipediaXmlSplitter.props found on classpath, will use command-line arguments only
13/11/29 14:51:08 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Exception in thread "main" java.lang.NullPointerException
at org.apache.hadoop.io.compress.bzip2.Bzip2Factory.isNativeBzip2Loaded(Bzip2Factory.java:54)
at org.apache.hadoop.io.compress.bzip2.Bzip2Factory.getBzip2Decompressor(Bzip2Factory.java:131)
at org.apache.hadoop.io.compress.BZip2Codec.createDecompressor(BZip2Codec.java:250)
at org.apache.hadoop.io.compress.BZip2Codec.createInputStream(BZip2Codec.java:156)
at org.apache.mahout.text.wikipedia.WikipediaXmlSplitter.main(WikipediaXmlSplitter.java:190)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:72)
at org.apache.hadoop.util.ProgramDriver.run(ProgramDriver.java:144)
at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:152)
at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:195)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.util.RunJar.main(RunJar.java:212)

And I have a little trouble seeing where it comes from

Thank you for your help