Durable Replay: Crash Before Ship

Durable Replay: Crash Before Ship A sequence diagram generated by Archify. start order workflow charge card (id C) charged append step result C ship order (id S) crash before the result is logged retry after crash replay: C done, S open ship order (id S) again same stable step id parcel-9 (deduped) order complete First Execution Crash Recovery Checkout · workflow trigger · Sequence participant Checkout workflow trigger Workflow Engine · orchestrator · Sequence participant Workflow Engine orchestrator Durable Log · write-ahead log · Sequence participant Durable Log write-ahead log Card Network · idempotent charge · Sequence participant Card Network idempotent charge Shipper · no idempotency key · Sequence participant Shipper no idempotency key Legend main request return async trace message