Hi Jyoti, Even I'm new to this and i'm no expert. But this is how i made it work. Note, This might not be the best way to run the job. I'm not sure :)
But here you go, *Step 1*: I place my own giraph code containing vertex.compute in * $GIRAPH_HOME/** giraph-examples/src/main/java/org/apache/giraph/examples/<yourFile.java>*. Note, I added this line to the my vertex giraph java file. *"package org.apache.giraph.examples;"* *Step 2*: Then I went to *$GIRAPH_HOME/**giraph-examples/* directory and executed the following command *"mvn compile"*. *Step 3*: Not sure if this step is needed. But give it a try. I exported the *giraph-examples-1.0.0-for-hadoop-0.20.203.0-jar-with-dependencies.jar* which is present in target directory to hadoop classpath. *Step 4*: Ran the below command and job ran successfully. *"hadoop jar giraph-examples-1.0.0-for-hadoop-0.20.203.0-jar-with-dependencies.jar org.apache.giraph.GiraphRunner org.apache.giraph.examples.MyMaximumValue -vif org.apache.giraph.io.formats.JsonLongDoubleFloatDoubleVertexInputFormat -vip /user/MaxInput.txt -of org.apache.giraph.io.formats.IdWithValueTextOutputFormat -op /user/graphout/test7/ -w 1"* It worked fine for me. Hopefully it will work for you as well. Regards, Suman Bharadwaj S On Sun, Oct 27, 2013 at 6:33 PM, Jyoti Yadav <rao.jyoti26ya...@gmail.com>wrote: > Hi .. > I want to run my own giraph program. I made some modification to already > existiing SimpleShortestPathsComputation program. > > I compiled it and created a jar file. > I gave following command. > > bin/hadoop jar > $GIRAPH_HOME/giraph-examples/target/giraph-examples-1.1.0-SNAPSHOT-for-hadoop-0.20.203.0-jar-with-dependencies.jar > org.apache.giraph.GiraphRunner -libjars /home/hduser/sp2.jar > SimpleShortestPathsComputation*1* -vif > org.apache.giraph.io.formats.JsonLongDoubleFloatDoubleVertexInputFormat > -vip /user/hduser/sp_input/tiny_graph.txt -vof > org.apache.giraph.io.formats.IdWithValueTextOutputFormat -op > /user/hduser/sp_output7/shortestpaths -w 1 > > > I am getting following error.. > > > Exception in thread "main" java.lang.ClassNotFoundException: > SimpleShortestPathsComputation1 > at java.net.URLClassLoader$1.run(URLClassLoader.java:366) > at java.net.URLClassLoader$1.run(URLClassLoader.java:355) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:354) > at java.lang.ClassLoader.loadClass(ClassLoader.java:424) > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) > at java.lang.ClassLoader.loadClass(ClassLoader.java:357) > at java.lang.Class.forName0(Native Method) > at java.lang.Class.forName(Class.java:190) > at > org.apache.giraph.utils.ConfigurationUtils.handleComputationClass(ConfigurationUtils.java:470) > at > org.apache.giraph.utils.ConfigurationUtils.populateGiraphConfiguration(ConfigurationUtils.java:453) > at > org.apache.giraph.utils.ConfigurationUtils.parseArgs(ConfigurationUtils.java:207) > at org.apache.giraph.GiraphRunner.run(GiraphRunner.java:74) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) > at org.apache.giraph.GiraphRunner.main(GiraphRunner.java:124) > 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:156) > > > Please help me out..I am badly tangled.. > > Thanks > Jyoti > > >
