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Topic
Python caching, Redis coordination, background task delivery, retries, worker behavior, and stale-work protection.
Practice items tagged with Caching & Background Work.
Explains early and late acknowledgement without promising exactly-once task execution.
Tunes worker pools and reservation behavior to task shape instead of maximizing a single concurrency number.
Uses Django cache configuration to control freshness, namespace sharing, and safe cache migrations.
Separates single scheduler ownership from task-level overlap and idempotency controls.
Uses expected versions and conditional writes so delayed or retried Python tasks cannot commit stale decisions.
Reuses bounded redis-py pools for the application lifetime and closes async resources deliberately.