Algorithms on billion-scale graph using 10GB RAM: I love DataFusion

In a previous post, I was sceptical about using Apache DataFusion for graph analytics. However, after some thought and experimentation, I changed my mind. I have reconsidered my approach and now have a working implementation of basic graph algorithms, such as WCC, PageRank and MSSP. For example, I can identify weakly connected components in a graph with two billion edges using just 10 GB of RAM and two cores. This is one of the most widely used graph algorithms and lies behind most entity resolu