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AAAbstract Algorithmsinabstractalgorithms.dev

Dead Letter Queue Pattern: Isolating Poison Messages and Recovering Safely

Mar 13 · 14 min read · TLDR: A dead letter queue protects throughput by moving repeatedly failing messages out of the hot path. It only works if retries are bounded, triage has an owner, and replay is a deliberate workflow instead of a panic button. TLDR: The main SRE ques...

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FRFelipe Rodriguesinblog.felipefr.dev

Dead Letter Queues and Error Handling

Sep 12, 2025 · 17 min read · The distributed systems we build today are complex, inherently unreliable, and constantly challenged by the unpredictable nature of networks, external services, and even their own internal state. Messages, the lifeblood of these systems, traverse a l...

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