> You could certainly build a system with 40,000 of these live, but probably you would not have 40,000 different chunks of source code behind them.
We're "replacing" an old system that has lived on a mainframe for the past 60 years. In a strict microservice scenario we would indeed need 40000+ microservices to replace our core business.
The thing about (our) mainframe integration is that it is essentially made up of microservices, only they're small chunks of COBOL being called like pearls on a string, each producing output for the next in the chain.
We're "replacing" an old system that has lived on a mainframe for the past 60 years. In a strict microservice scenario we would indeed need 40000+ microservices to replace our core business.
The thing about (our) mainframe integration is that it is essentially made up of microservices, only they're small chunks of COBOL being called like pearls on a string, each producing output for the next in the chain.