Hello everybody. My name is Rodrigo and I'm just starting a scientific initiation on graph processing systems. I'm trying to run the Shortest Paths Example [ https://cwiki.apache.org/confluence/display/GIRAPH/Shortest+Paths+Example] taking the following steps in terminal:
hadoop namenode -format start-all.sh hadoop-0.20.203.0-jar-with-dependencies.jar org.apache.giraph.examples.SimpleShortestPathsVertex shortestPathsInputGraph shortestPathsOutputGraph 0 3 So I got this: Exception in thread "main" java.io.IOException: Error opening job jar: giraph-0.2-SNAPSHOT-for-hadoop-0.20.203.0-jar-with-dependencies.jar at org.apache.hadoop.util.RunJar.main(RunJar.java:90) Caused by: java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(ZipFile.java:127) at java.util.jar.JarFile.<init>(JarFile.java:135) at java.util.jar.JarFile.<init>(JarFile.java:72) at org.apache.hadoop.util.RunJar.main(RunJar.java:88) Alternatively, I tried to run making this: hadoop-0.20.203.0-jar-with-dependencies.jar org.apache.giraph.GiraphRunner org.apache.giraph.examples.SimpleShortestPathsVertex -if org.apache.giraph.lib.JsonBase64VertexInputFormat -ip shortestPathsInputGraph -of org.apache.giraph.lib.JsonBase64VertexOutputFormat -op shortestPathsOutputGraph -w 3 But I got the same error above. Am I doing something wrong? I'm using hadoop version 0.2 and there was a passage in the example saying that, in this case, the class SimpleShortestPathsVertex does not have a main() method, so I'd have to run it via the ToolRunner, but what is this tool? How should I proceed with this? I'm really stuck here :( Thanks in advance. Rodrigo Zerbini Computer Science student in University of São Paulo
