Sanfeng worked on the Apache DolphinScheduler project, focusing on enhancing workflow execution reliability by addressing a critical issue in condition task handling. Using Java and backend development skills, Sanfeng implemented a fix that allows condition task nodes to execute based on their defined dependencies, even when preceding tasks fail. This change improved the robustness and predictability of automated data pipelines by ensuring failure paths are properly evaluated. The solution required careful testing to validate workflow behavior and reduce manual intervention in failure scenarios. Sanfeng’s contribution deepened the reliability of workflow automation in the apache/dolphinscheduler repository during the development period.