System Design Aug 18, 2026 8 min read
Message Delivery Semantics Lab: Crash, Retry, and Idempotency Examples
Run four deterministic delivery scenarios to see how ACK timing, crashes, retries, stable IDs, and DLQ boundaries change business outcomes.
Tag
Kafka
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System Design Aug 18, 2026 4 min read
Reliable Event Publishing with Spring Boot and an Outbox
Build a Spring Boot transactional outbox that commits business state with publication intent, survives relay crashes, and exposes duplicate-safe evidence.