Re: @AC No bullet dodged...
>W.R.T the mainframe... the interesting thing would be to port Hadoop/MapR and Kubernetes to the >mainframe. Now you have a very secure, higher performing base system which can be virtualized >as cloud infrastructure. If IBM were 'smurt' they would be doing this already.
It's been done years ago, dude.. By IBM and also by non-IBM - Veristorm ported Hadoop to the mainframe in the 2014 timeframe.
IBM's own ICP - IBM Cloud Private, it's own Kubernetes environment - runs on Linux on the mainframe.
It is not true that most enterprises are offloading the mainframe - yes, there are applications migrating, but it is not all of them, and some times they are being migrated to leave more space to other applications that are growing. The following link puts an interesting perspective on where the mainframe stands today.