I haven't worked in a specifically microservice environment, but I am currently working in a company that has quite diverse technology choices. One of the problems we have is that we're pretty small, and sometimes there is a lot more work that needs to be done on one component than another, in those cases you can't really have people who are relying on the work help.
E.g. we use erlang/cowboy for our web server and when there are bottlenecks changing that, they pretty much fall on two people who know erlang well enough to work on it.
It seems like it would have been better if the web server was written in something a larger chunk of the engineering org could modify so that when people needed changes to it for their project, they could make the changes, get them code reviewed by the maintainer, and get it shipped.
The other concern I have with microservices is that doing any wide-ranging changes is hard. Maybe it's always hard, but microservices seem like they would exacerbate the problem. I feel like I already run into this issue at my current job where we mostly have small (~10k) codebases, where people don't really want to make changes that will require making changes to more than two of them at once.
E.g. we use erlang/cowboy for our web server and when there are bottlenecks changing that, they pretty much fall on two people who know erlang well enough to work on it.
It seems like it would have been better if the web server was written in something a larger chunk of the engineering org could modify so that when people needed changes to it for their project, they could make the changes, get them code reviewed by the maintainer, and get it shipped.
The other concern I have with microservices is that doing any wide-ranging changes is hard. Maybe it's always hard, but microservices seem like they would exacerbate the problem. I feel like I already run into this issue at my current job where we mostly have small (~10k) codebases, where people don't really want to make changes that will require making changes to more than two of them at once.