Spring Boot Scheduling Standards

Priority: P0

Implementation Guidelines

Scheduled Tasks

• ThreadPool: ALWAYS configure a dedicated TaskScheduler (default is 1 thread). Enable with @EnableScheduling annotation.
• Async: Keep @Scheduled methods light; offload to @Async/Queues. Wrap logic in try/catch; log errors and use @Retryable for retry on transient failures.

Distributed Locking (ShedLock)

• Problem: @Scheduled runs on ALL pods in K8s.
• Solution: Use ShedLock to guarantee single execution.
• Config: Set lockAtMostFor (deadlock safety) and lockAtLeastFor (debounce).

Anti-Patterns