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System Design Basics - Databases and Connection Pools

Why more open connections can degrade your queries?

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javinpaul and Sahil Sarwar
Jul 09, 2025
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Hello guys, when designing scalable systems, one of the most critical components to understand is the database layer and how applications interact with it efficiently.

Whether you're building a monolithic backend or a distributed microservic…

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A guest post by
Sahil Sarwar
Software engineer, writer. Asking the 'whys', peeling apart the layers, one at a time, of systems, life and the magic underneath them all.
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