Key Microservices Mistakes Developers Should Avoid From the Start

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Many engineering teams prematurely adopt microservices architecture, often producing a 'distributed monolith' that carries the downsides of both approaches without the benefits of either. Experts recommend beginning with a well-structured monolith and splitting into services only when concrete scaling or team-ownership needs arise. Services should be divided by business capability — such as orders, payments, or inventory — rather than by technical layers, and each service must exclusively own its data. Asynchronous communication, resilience patterns like circuit breakers, and distributed tracing tools are essential safeguards that must be built in early. Microservices are ultimately an organizational and scaling tool, not a default architecture, and teams smaller than ten people are generally advised against adopting them.

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