DevOps & CI/CD

Handling Poison Pills with a DLQ Retry Pattern

DevOps & CI/CD diagram · made in Skemio

Flowchart showing message processing flow: start consume, process check, retry limit decision, routing to delay queue or terminal dead letter queue.
Flowchart showing message processing flow: start consume, process check, retry limit decision, routing to delay queue or terminal dead letter queue.
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What it shows

  • Immediate retries trigger thundering herds and lock consumer threads.
  • Delayed retry queues add exponential backoff without stalling pipelines.
  • Terminal DLQs isolate unprocessable payloads for manual root-cause triage.

The takeaway

Never retry indefinitely in place; back off into delayed queues and isolate poison pills.

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