• Spring Boot
• MySQL
• Redis
• Redisson Client
• Redisson Distributed Lock
• Docker
• Docker-Compose
• Lombok
• Spring Retry
• CommandLineRunner

We can easily run the whole with only a single command:

• docker-compose up -d

./redis-publisher
mvn spring-boot:run

./redis-subscriber-one
mvn spring-boot:run

./redis-subscriber-two
mvn spring-boot:run

RLock lock = redisson.getLock("update-stock-lock");
lock.lock(4, TimeUnit.SECONDS);
lock.unlock();

@Retryable(value = org.redisson.client.RedisTimeoutException.class, maxAttempts = 2, backoff = @Backoff(delay = 2000))

• System Design