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Memory Blows Up at Scale: Lessons From Batch-Processing Thousands of PDFs

This story is from 2026-09-12. It is preserved in the archive; the latest stories are on the live feed.

It started with a Slack message that every backend engineer dreads: "The batch job died again. Server's out of memory." We were processing PDF uploads for a document pipeline that had grown from a few hundred files a day to tens of thousands. The code hadn't changed. The logic was the same as it ha…

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  1. 2026-09-12 04:25 · DEV Community — AI
    Memory Blows Up at Scale: Lessons From Batch-Processing Thousands of PDFs

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