Big data is becoming the next best thing to true magic. It is everywhere and, increasingly, nowhere specific. Every node in the known computing universe is becoming a component in a vast, distributed, pervasive big data cloud. In an Internet of Things (IoT)-centric world, cloud’s processing, storage and other functions are being virtualized to endpoints of every size, configuration and capability. This is the vision of IoT “fog computing.” In this emerging era, big data analytics clouds will increasingly emphasize high-volume log analysis and rely heavily on cognitive computing algorithms to make sense of it all.