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5 Software Architecture Mistakes That Make Systems Hard to Change

You can follow every enterprise best practice. You can use Clean Architecture, some type of layered architecture, event-driven architecture, microservices, or whatever else is popular. It can still end up in the same place. You have a system that is really hard to change. YouTube Check out my YouTube channel, where I post all kinds of content on Software Architecture & Design, including this video showing everything in this post. When you do make a change, you are afraid you are going to break something. Eventually, the same comment keeps coming up: We would be better off rewriting this whole thing. The… Read More »5 Software Architecture Mistakes That Make Systems Hard to Change

Multi-Tenancy Isn’t About Databases

You start off with what seems like the obvious solution to a multi-tenant SaaS application. We have tenant A. We have tenant B. We have one application and one database. Within that database, for every structure, whether that is a table, collection, or stream, we segregate things by a tenant ID. It is simple. It is easy. It works. Until it does not. What happens when one tenant imports five million records? Or they run a bunch of reports, and some of those reports are massive? That shared infrastructure which seemed simple is also what is coupling everything together. YouTube… Read More »Multi-Tenancy Isn’t About Databases

Resilience Patterns Can Make Your System Less Resilient

You wanted your system to be resilient, so you followed the standard advice. You added retries.You added circuit breakers.You added fallbacks. But now your system is less resilient. Not because those patterns are bad. They are not. The problem is they are doing exactly what you told them to do. YouTube Check out my YouTube channel, where I post all kinds of content on Software Architecture & Design, including this video showing everything in this post. Retries are great for network blips and transient issues. But the tradeoff is that you are adding more load to a system that might already be… Read More »Resilience Patterns Can Make Your System Less Resilient