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 Inspire™ 4G on AT&T ----- Reply message ----- From: "yavuz gokirmak" <ygokir...@gmail.com> To: "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
