
Worked on backend development for the Jibing-Li/incubator-doris repository, focusing on optimizing session variable access within file-related scan nodes. The approach involved refactoring the codebase to replace repeated calls to ConnectContext.get().getSessionVariable() with a direct sessionVariable reference, thereby reducing unnecessary context lookups and improving performance across the file scan path. Additionally, the implementation leveraged saved member variables to further streamline session access, resulting in more maintainable and efficient code. The work was carried out using Java and backend engineering principles, emphasizing code clarity and runtime efficiency while addressing a targeted performance bottleneck in the system’s scan node logic.
January 2025 monthly summary for Jibing-Li/incubator-doris: Key feature delivered is the session variable access optimization in file-related scan nodes. This was achieved by refactoring to use a direct sessionVariable reference, replacing repeated ConnectContext.get().getSessionVariable() calls, which reduces context lookups and improves performance across file scan node implementations. A related fix leveraged saved member variables to further optimize session access (commit 47257ef7131a06199cb6e61b4cf4ec09b7de4918).
January 2025 monthly summary for Jibing-Li/incubator-doris: Key feature delivered is the session variable access optimization in file-related scan nodes. This was achieved by refactoring to use a direct sessionVariable reference, replacing repeated ConnectContext.get().getSessionVariable() calls, which reduces context lookups and improves performance across file scan node implementations. A related fix leveraged saved member variables to further optimize session access (commit 47257ef7131a06199cb6e61b4cf4ec09b7de4918).

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