Microservices

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Recently I wrote about software trends from 2019 and how applicable they might be today. One of those was microservices, which I don't see implemented that often with relational databases. I do see developers wanting to use them, but I don't see them often with a RDBMS backend.

I did see a piece on microservices, which mirrors that view. Lots of talk about the architecture, but not a lot of implementation. O'Reilly did a survey in Feb 2020, just before the world changed, and the found that only 10% reported complete success, but 54% felt mostly successful, and 92% some success. That's better than I thought.

The respondents are self-selecting, so it's not surprising that there might be some success. It's not surprising that a third of these people are moving over half of their legacy systems to this architecture. That doesn't mean they'll be successful in the move, or that they'll continue.

They also note that containers are important, and I think this might be more the nature that containers lend themselves to microservices. The companies I've know that heavily use containers tend to use microservices, almost as if the two technologies reinforce each other.

I think culture plays an important part in any success, and if I were in an organization, I'd focus on this. Perhaps just like DevOps, with a small team proving some success and using that as evidence to start convincing others to move. However, I'd also need to have a good argument about why we should rewrite applications, or even bet heavily on a new architecture. I've yet to see a good reason why microservices work well with an RDBMS, but I'm open to someone convincing me.

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