Worked on stabilizing the shuffle spill path in the apache/incubator-gluten repository, focusing on scenarios where compression is disabled for sort-based workloads. Addressed a critical OutOfMemory issue by refining memory management and optimizing the IO path, specifically adjusting BufferOutputStream creation to respect buffer size and reduce excessive memory allocation. This C++ work targeted distributed systems at scale, resulting in improved reliability and lower failure rates during large-scale shuffle operations. The efforts centered on performance optimization and memory efficiency, ensuring better resource utilization and stability in production-like environments without introducing new features, but delivering a robust bug fix for the project.