High-concurrency ticket booking on OCI with Autonomous DB, OCI Cache for seat locking, and OCI Queue for payment processing.
Difficulty: intermediate
Tags: booking, concurrency, payments, flash-sale, oci
A ticket booking system must handle extreme concurrency during flash sales — thousands of users competing for limited seats simultaneously. This OCI-native design uses OCI Cache (Redis) for atomic seat locking, Autonomous Database for ACID-compliant booking records, and OCI Queue Service for decoupled payment processing. Designed for teams building event ticketing or reservation systems that must handle extreme concurrency during flash sales.