I'm going to make a prediction. Cloud storage services will follow the same roadmap as SQL -> NoSQL -> NewSQL. NoSQL systems grew from the need to scale-out rel

I'm going to make a prediction. Cloud storage services will follow the same roadmap as SQL -> NoSQL -> NewSQL. NoSQL systems grew from the need to scale-out relational databases. NewSQL systems bring both scalability and strong consistency, and companies moving back to strong consistency. Similarly, object stores systems grew from the need to scale-out filesystems. A new generation of hierarchical filesystem will appear that bring both scalability and hierarchy, and the cloud will eventually move back to scalable hierarchical filesystems. I'm basing this prediction on recent work on scaling hierarchical filesystems by providing distributed metadata layers - https://goo.gl/NPXLQN https://goo.gl/NPXLQN