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Becky

I build real-time messaging infrastructure that handles 100K concurrent connections — and write about what breaks along the way.

2d ago

There Was a Deadlock Hiding in AI-Generated Code — How We Replaced `unreadCount` with `lastReadAt`

42.8% HTTP error rate, 9 minutes into a load test. The culprit was a single updateMany line carelessly written during AI-assisted coding. 1. Discovery — "Why are we doing 9.5 TPS when the target is

beckybuilds.hashnode.dev8 min read

#postgresql #prisma #databases #concurrency #nodejs #debugging

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There Was a Deadlock Hiding in AI-Generated Code — How We Replaced `unreadCount` with `lastReadAt`

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