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POHadoop Maven Dependency Error
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2012-02-01T01:28:17.147
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2012-02-01T02:30:59.787
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I am trying to build a Hadoop job using Maven. This job works well when I don't use Maven and directly import the Hadoop Jar dependency into eclipse. I'm also able to build a simple jar (hello world type) using Maven without the Hadoop dependency. But when I add the Hadoop dependency, and run the jar, I get this error: <pre><code>dataException in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/conf/Configuration at org.graphhadoop.CreateAdjacency.Adjacency(CreateAdjacency.java:74) at org.graphhadoop.Driver.main(Driver.java:12) Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.conf.Configuration at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) ... 2 more </code></pre> The pom file changes are these: <pre><code> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <dependency> <groupId>org.apache.hadoop</groupId> <artifactId>hadoop-core</artifactId> <version>0.20.203.0</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <configuration> <archive> <manifest> <addClasspath>true</addClasspath> <mainClass>org.graphhadoop.Driver</mainClass> </manifest> </archive> <manifestEntries> <Class-Path>../target/classes</Class-Path> </manifestEntries> </configuration> </plugin> </plugins> </build> </code></pre> Where am I going wrong? Edit: For now, I am running the Jar locally - not on Hadoop, but on local data. <pre><code>java -jar jarname.jar </code></pre>
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<maven><hadoop><dependencies>
Title
Hadoop Maven Dependency Error
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