Hello, I'm new to Giraph and I'm trying to run SimpleShortestPathsComputation using an edge list input file. I have some questions and and error message that hopefully I can get some help with.
Edge List File Format What is the correct format for an edge list input file? I have a .tsv file with a vertex represented as an integer. Is this correct? 5 11 1 6 6 9 6 8 8 9 ..... Input File Class: Is org.apache.giraph.io.formats.*TextEdgeInputFormat *the only input format that can be used for edge lists? Output File Class: Does the output format depend on the job you are running? I have been using org.apache.giraph.io.formats.*TextVertexOutputFormat* for SimpleShortestPathsComputation. Run Command: So this is the command I am using to try to run the SimpleShortestPathsComputation using an edge list input file. *bin/hadoop jar /home/ubuntu/giraph/giraph-examples/target/giraph-examples-1.1.0-SNAPSHOT-for-hadoop-1.0.2-jar-with-dependencies.jar org.apache.giraph.GiraphRunner org.apache.giraph.examples.SimpleShortestPathsComputation * *-eif org.apache.giraph.io.formats.TextEdgeInputFormat * *-eip /simpleEdgeList/SimpleEdgeList.tsv * *-of org.apache.giraph.io.formats.TextVertexOutputFormat * *-op /outShortest* *-w 3* Error Message When I run the above command I get the following error message: Exception in thread "main" java.lang.IllegalStateException: newInstance: Couldn't instantiate org.apache.giraph.io.formats.TextVertexOutputFormat Thank you, Peter
