Mira Engineering BlogA private engineering knowledge base for durable technical decisions.https://blogs.mira-engineering.com/Domain events: From DDD history to a reliable production flowhttps://blogs.mira-engineering.com/articles/domain-events-from-history-to-production/https://blogs.mira-engineering.com/articles/domain-events-from-history-to-production/Understand how Domain Events model business facts, how aggregates record and dispatch them, and how to choose the correct transaction boundary for reliable production systems.Sat, 25 Jul 2026 00:00:00 GMTarchitecturedistributed-systemsCircuit Breaker: Prevent Cascading Failures Before They Take Down Your Microserviceshttps://blogs.mira-engineering.com/articles/circuit-breaker-prevent-cascading-failures/https://blogs.mira-engineering.com/articles/circuit-breaker-prevent-cascading-failures/Design, configure, and operate circuit breakers for production HTTP dependencies with Polly v8 and Microsoft.Extensions.Http.Resilience.Sat, 25 Jul 2026 00:00:00 GMTproduction-engineeringdistributed-systemsTransactional Outbox: Close the Dual-Write Gap Without Distributed Transactionshttps://blogs.mira-engineering.com/articles/transactional-outbox-close-the-dual-write-gap/https://blogs.mira-engineering.com/articles/transactional-outbox-close-the-dual-write-gap/Persist business state and integration messages atomically, then operate an at-least-once relay with explicit deduplication, recovery, and observability.Sat, 25 Jul 2026 00:00:00 GMTdistributed-systemsproduction-engineeringDead Letter Queue: Quarantine Failed Messages Without Hiding Themhttps://blogs.mira-engineering.com/articles/dead-letter-queue-quarantine-not-recovery/https://blogs.mira-engineering.com/articles/dead-letter-queue-quarantine-not-recovery/Operate dead-letter queues as bounded quarantine with failure classification, ownership, safe replay, and evidence that the original defect is fixed.Sat, 25 Jul 2026 00:00:00 GMTproduction-engineeringdistributed-systemsProduction Messaging Checklist: Prove Reliability Before Releasehttps://blogs.mira-engineering.com/articles/production-messaging-checklist/https://blogs.mira-engineering.com/articles/production-messaging-checklist/Review message identity, contracts, delivery, idempotency, ordering, resilience, observability, recovery, and ownership with evidence rather than assumptions.Sat, 25 Jul 2026 00:00:00 GMTproduction-engineeringdistributed-systemsIdempotent Consumer: Turn Redelivery Into One Business Effecthttps://blogs.mira-engineering.com/articles/idempotent-consumer-one-message-one-business-effect/https://blogs.mira-engineering.com/articles/idempotent-consumer-one-message-one-business-effect/Design message consumers that tolerate duplicate delivery without repeating database changes, payments, notifications, or downstream commands.Sat, 25 Jul 2026 00:00:00 GMTdistributed-systemsproduction-engineeringSaga: Choose Choreography or Orchestration for Long-Running Consistencyhttps://blogs.mira-engineering.com/articles/saga-choreography-vs-orchestration/https://blogs.mira-engineering.com/articles/saga-choreography-vs-orchestration/Coordinate multi-service business workflows with explicit state, compensation, timeouts, and a deliberate choice between choreography and orchestration.Sat, 25 Jul 2026 00:00:00 GMTdistributed-systemsarchitectureRetry, Timeout, and Backoff: Bound Transient Failure Without Amplifying Ithttps://blogs.mira-engineering.com/articles/retry-timeout-backoff-bound-transient-failure/https://blogs.mira-engineering.com/articles/retry-timeout-backoff-bound-transient-failure/Build deadline-aware .NET resilience pipelines that retry only safe transient failures, spread load with jitter, and preserve the caller's total latency budget.Sat, 25 Jul 2026 00:00:00 GMTproduction-engineeringdistributed-systemsDistributed Transactions: Why Two-Phase Commit Rarely Fits Microserviceshttps://blogs.mira-engineering.com/articles/distributed-transactions-why-2pc-rarely-fits/https://blogs.mira-engineering.com/articles/distributed-transactions-why-2pc-rarely-fits/Understand the guarantees and failure costs of two-phase commit, how .NET transactions escalate, and when local transactions plus messaging are the safer production design.Sat, 25 Jul 2026 00:00:00 GMTdistributed-systemsarchitectureExactly Once Is a Myth: Define the Guarantee at Every Boundaryhttps://blogs.mira-engineering.com/articles/exactly-once-is-a-myth/https://blogs.mira-engineering.com/articles/exactly-once-is-a-myth/Separate broker, producer, processor, database, and business-effect guarantees so exactly-once claims become testable production contracts.Sat, 25 Jul 2026 00:00:00 GMTdistributed-systemsarchitecture