Adding durability to in-memory data structures

Question

What are some of the popular techniques you can adopt to add durability to your in-memory data structures (ie) if the process crashes, you can preserve all previously ex

Answer 1

Any answer to your question will entail doing something like what an ACID database system does. So I would say your best bet is to use an RDBMS to store your application state, updating whenever you have an (application) transaction that must not be lost.