[Sanddancer]

I've worked on a codebase where a jsp app would call an API served by a mod_perl app, which would call a remote API to a c++ app. Technical bankruptcy can and does creep up even in services made in the micro style. They may not be as common now because the microservice trend is fairly recent, but as years go on, I'm betting you're going to see more issues with microservice systems where code done may be using a decade's worth of changing Best Practices.

[flukus]

You just reminded me of one I worked on too, back before the buzzword existed but still a microservice architecture. It was all c# but service1 would call service2 which would call service3 which would call service1. It had all the spaghetti of a monolithic system with 1/10th the debugability and performance (serialization can be relatively expensive).