June 2026: Delivered a critical stability fix for CustomMemoryResource in Velox, restoring memory management functionality and addressing a suppressed memory leak that affected task execution. The fix reintroduced the original memory leak patch with targeted lifecycle and teardown changes, ensuring pools and arbitrators are destroyed in the correct order to prevent leaks. This work reduces intermittent leaks, lowers memory pressure during large-graph query runs, and improves reliability of scheduling and task termination in production workloads.

Month: 2026-05: Delivered the Custom Memory Resource Extension Framework for Velox, enabling registration-based extensions for custom memory resources (GPU, CXL, pinned host, NUMA-aware) and integrating with QueryCtx to create root memory pools. Implemented the extension API (allocator, arbitrator, reclaimer) and wired it into the core memory management path to enable plug-in backends and future accelerators. Achieved CI readiness through test scaffolding and library wiring.