We broke our monolith ~2015. 8 years later we still have the original monolith plus the original mircoservices are now monoliths too which need splitting. Upgra

We broke our monolith ~2015. 8 years later we still have the original monolith plus the original mircoservices are now monoliths too which need splitting. Upgrades were a nightmare for first 5 years, but we solved it with nitpicking code reviews where non-trival changes are blocked forever until everyone's ready. At least we solved the problem of decreasing performance the old fashioned way: by throwing more RAM and CPU power at the problem.