This week's book giveaways are in the Refactoring and Agile forums. We're giving away four copies each of Re-engineering Legacy Software and Docker in Action and have the authors on-line! See this thread and this one for details.
Let's assume I have one application server (AS), when load on it goes up I create new instance of it and balance the load.
But on 1'st instance I have a class with collection of elements, and when I run second server it's collection is empty.
How mechanism of server-state synchronization is implemented on distributed systems? How would I send these elements from 1'st server to 2'nd?