Thank you for advices, I have a few more questions.
I have created a class named INTPageRankVertex which is similar to SimplePageRankVertex and generated a jar holding only INTPageRankVertex.java. Later, try to run with giraph command as below but get classpath errors: giraph INTPageRankVertex.jar org.test.INTPageRankVertex \ -ip /user/hdfs/pagerankinput/graph.input \ -op /user/hdfs/pagerankoutput/ \ -w 1 \ -if org.test.INTPageRankVertex.INTPageRankVertexInputFormat \ -of org.test.INTPageRankVertex.INTPageRankVertexOutputFormat \ First I get, Exception in thread "main" java.lang.ClassNotFoundException: org.test.INTPageRankVertex in bin/giraph user jar is added to classpath on line 58 58. CLASSPATH=${USER_JAR} but CLASSPATH is overwritten on line 87 87. CLASSPATH=`mvn dependency:build-classpath | grep -v "[INFO]"` changing line 87 as below solves my first problem. Does this patch is valid? 87. CLASSPATH=$CLASSPATH:`mvn dependency:build-classpath | grep -v "[INFO]"` After changing line 87 I get a different classpath error: Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/giraph/graph/LongDoubleFloatDoubleVertex And I solved this problem by adding below line 113. CLASSPATH=$CLASSPATH:$JAR Does these patches are necessary or I am doing something wrong while running my code.. best regards.. On 18 February 2012 18:37, Avery Ching <ach...@apache.org> wrote: > IntIntNullIntTextInputFormat in the examples package (extending > TextVertexInputFormat as David suggests) is very similar to what you need I > think, although the types might be different for your application. You can > start with that perhaps. > > Avery > > > On 2/18/12 7:48 AM, David Garcia wrote: > > The easiest thing to do is to extend text vertex or/and textvertext input > format and/or the record reader. The record reader will give you the > vertices you want. Look at the record reader for textvertexinputformat. > It's an innerclass on this format class. > > Sent from my HTC Inspireā¢ 4G on AT&T > > ----- Reply message ----- > From: "yavuz gokirmak" <ygokir...@gmail.com> <ygokir...@gmail.com> > To: "giraph-user@incubator.apache.org" <giraph-user@incubator.apache.org> > <giraph-user@incubator.apache.org> <giraph-user@incubator.apache.org> > Subject: how to use SimplePageRankVertex > Date: Sat, Feb 18, 2012 9:08 am > > > > Hi, > > I am planning to use giraph for network analysis. First I am trying to > fully understand SimplePageRankVertex implementation and modify in order to > serve my needs. > > I have a question about example, > What is the expected input format for SimplePageRankVertex, I couldn't > understand the input format although SimplePageRankVertexReader class has > few lines. > > > My input file is contains of rows such as: > usera, userb > usera, userc > userc, usera > userb, userc > userc, userb > . > . > . > Each row represents a relation between two users, > *"usera,userb"* means that *"usera is clicked userb's profile" * > > Is it possible to make social network analysis over such kind of data > using giraph? > I will be glad if you can give advices.. > > thanks in advance > best regards > ygokirmak > > >