During May 2025, Mingfei Nuonuo focused on enhancing the redis/jedis repository by addressing a connection pool leak and optimizing single-node pipeline execution. Leveraging Java and skills in connection management and multi-threading, Mingfei restructured the pipeline path so that when all keys reside on a single node, operations execute on the current thread, reducing thread pool overhead and improving latency. The fix ensured connections are reliably returned to the pool, increasing stability under load. Comprehensive regression tests were added to validate these changes, reflecting a thoughtful approach to performance optimization and reliability in distributed systems within a short, focused development period.