Hi, I cannot explain it. But if it any use, for making it working without specifying the library in command line you can use the distributed cache: DistributedCache#addFileToClassPath
Regards, Étienne On 24 July 2012 13:37, Marcin Biczak <marcinbic...@gmail.com> wrote: > Hi > > I had similar problem, here is "my solution", > http://stackoverflow.com/questions/10700853/giraph-shortest-paths-example-classnotfoundexception. > But I still don't know why I have do it like this, maybe someone here can > explain this? > > regards > marcin biczak > > > 2012/7/24 KAUSHIK SARKAR <countkaus...@gmail.com> > >> Hi, >> >> I created a new test project and copied the code from >> SimpleShortestPathsVertex.java file (org.apache.giraph.examples) into it. >> But when I run it, it gives me java.lang.ClassNotFoundException. However, >> if I run the same program from the giraph-0.1-jar-with-dependencies.jar, >> it runs just fine. Following is the relevant information : >> >> Hadoop version: hadoop-1.0.3 (running in pseudo distributed mode) >> giraph version: giraph-0.1 >> jar created with Eclipse 3.3.1 >> Output: >> >> kaushik@kaushik-laptop:~/hadoop/hadoop-1.0.3$ bin/hadoop jar >> ../jars/test.jar /shortestPathsInputGraph /shortestPathsOutputGraph 0 3 >> 12/07/23 18:29:10 INFO mapred.JobClient: Running job: >> job_201207231222_0021 >> 12/07/23 18:29:11 INFO mapred.JobClient: map 0% reduce 0% >> 12/07/23 18:29:20 INFO mapred.JobClient: Task Id : >> attempt_201207231222_0021_m_000005_0, Status : FAILED >> java.lang.RuntimeException: java.lang.RuntimeException: >> java.lang.ClassNotFoundException: >> test.giraph.SimpleShortestPathsVertex$SimpleShortestPathsVertexOutputFormat >> at >> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:899) >> at >> org.apache.giraph.graph.BspUtils.getVertexOutputFormatClass(BspUtils.java:134) >> at >> org.apache.giraph.bsp.BspOutputFormat.getOutputCommitter(BspOutputFormat.java:56) >> at org.apache.hadoop.mapred.Task.initialize(Task.java:515) >> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:353) >> at org.apache.hadoop.mapred.Child$4.run(Child.java:255) >> at java.security.AccessController.doPrivileged(Native Method) >> at javax.security.auth.Subject.doAs(Subject.java:396) >> at >> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121) >> at org.apache.hadoop.mapred.Child.main(Child.java:249) >> Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: >> test.giraph.SimpleShortestPathsVertex$SimpleShortestPathsVertexOutputFormat >> at >> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:867) >> at >> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:891) >> ... 9 more >> Caused by: java.lang.ClassNotFoundException: >> test.giraph.SimpleShortestPathsVertex$SimpleShortestPathsVertexOutputFormat >> 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) >> at java.lang.Class.forName0(Native Method) >> at java.lang.Class.forName(Class.java:247) >> at >> org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:820) >> at >> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:865) >> ... 10 more >> >> >> >> I have checked inside the test/giraph folder of the test.jar file. It >> contains the class >> SimpleShortestPathsVertex$SimpleShortestPathsVertexOutputFormat. >> Any help will be appreciated. >> >> Regards, >> Kaushik >> > > > > -- > martin >
