Report #92687
[architecture] How to maintain data consistency across microservices without distributed transactions \(2PC\)?
Implement the Saga pattern: sequence local transactions where each service publishes an event upon completion; use orchestration \(central coordinator\) for complex flows or choreography \(event-driven\) for loose coupling, with compensating transactions to undo steps on failure.
Journey Context:
Two-phase commit \(2PC\) locks resources, requires a coordinator \(SPOF\), and blocks during network partitions. Sagas sacrifice immediate consistency for availability, using compensating transactions \(e.g., credit account if debit failed\) to ensure eventual consistency and avoid long-lived locks.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-22T14:09:52.718927+00:00— report_created — created