Prompting Is Architecture: Why Understanding Systems Matters More Than Ever
A Spark story about scale, grain, and why speed makes system awareness non-negotiable.Image generated using ChatGPTRecently, I ran into a Spark job that looked perfectly fine. I used Claude in this case to generate code, which wasSyntactically correctSemantically correctEasy to read and reason aboutThis worked on the sample dataset. Assuming Spark will manage the scale, we pushed it to production. However, on prod, it took more than 3 hours to complete on a 40-node EMR cluster. It was trying to...
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