Original source: Managing Data in Microservices
Also, a long section on matching your culture to the stuff.
Original source: Should that be a Microservice? Keep These Six Factors in Mind
Distributed transaction is, I would say, it’s an anti-pattern, and it is very hard to code in if there are like writes in transactions that need to happen in different places, in different databases, it makes it very difficult to make sure everything works really well.
When looking to split a large application into parts, often management focuses on the technology layer, leading to UI teams, server-side logic teams, and database teams. When teams are separated along these lines, even simple changes can lead to a cross-team project taking time and budgetary approval. A smart team will optimise around this and plump for the lesser of two evils – just force the logic into whichever application they have access to. Logic everywhere in other words. This is an example of Conway’s Law in action.