There was a time when scalability just meant clustering your database.

Then came the era of component transaction servers like Jaguar CTS & Microsoft transaction servers

What followed was an era of J2EE application servers like WebLogic, WebSphere, JBoss which could be clustered (scalability across X-axis).

Then came in the concept of replicating micro-services on light-weight containers like Docker and thereby scaling on Y-axis

And now in-memory clustered environment is what's getting attention The actor model is an architectural style that breaks down your application in Actors. Keep Reading...