During January 2025, AnySQL enhanced the juicedata/juicefs repository by improving the reliability and performance of metadata operations under high concurrency. Focusing on system programming with Go and leveraging SQL expertise, AnySQL introduced retry logic for handling syscall.EBUSY errors in MySQL and PostgreSQL metadata operations. The work also included refining the parent node update strategy to reduce contention and improve consistency during concurrent workloads. These changes addressed transient failures and enabled scalable metadata processing, resulting in higher throughput and reduced latency spikes. The depth of the solution demonstrated a strong grasp of concurrency, database optimization, and robust system design principles.