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Move slow work off the request/response cycle. Architect Celery + Redis for production: workers, queues, retries with exponential backoff, periodic jobs with Beat, and live monitoring with Flower.
Advanced patterns for signals and middleware. Learn when signals cause more pain than value, how to write thread-safe middleware, audit logging, request tracing, and debugging production issues.
Deep dive into Django ORM performance. Learn how to identify and fix N+1 queries, use select_related, prefetch_related, only(), defer(), and Django Debug Toolbar to measure the real impact.
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