As I said in my previous post, I am interacting a lot with Apache Giraph. Before beginning with Giraph, I needed to understand the concept behind it. Giraph is an open-source implementation of the Pregel model, proposed by Google in 2010.
What is Pregel?
How large can these large-scale graphs be? Well, let’s say billions is a good number. 🙂
What makes Pregel special?
Or shall I ask: Why not MapReduce (M/R)?