
Yawn...
First the architecture that they are now promoting was actually developed over 5 years ago.
Consider it a storage/compute cluster model which is actually a Data Lake Cluster with off cluster compute.
Mesosphere has been doing something similar and both it and Lightbend have working systems doing this.
The issue though is that you need a really solid network fabric between machines.
10GbE isn't going to cut it which means a higher investment into the infrastucture. Cue 40GbE and faster along with port bonding at the switch.
Plus better up links out of the rack. Also a need to rethink rack location of storage/compute nodes.
Posted Anon for the obvious reasons. (And even still some can still guess who I am. ;-) )