Python Background Workers: Architecture, Queues, and Retry Strategies

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I thought processing audio in the background was simple: spawn a thread, run the script, save the file. Then I hit 200 concurrent requests, and it failed epically. The CPU spiked to full usage because of pydub’s processing. The TTS API didn’t rate-limit me but, it was horribly slow. Then the jobs started failing. Half the jobs died silently. The other half wrote corrupted files because…

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