February 2026 monthly summary for Apache Doris (repo: apache/doris). Key deliverables: - No new features shipped this month; however, a critical stability improvement was implemented in the IndexChangeJob workflow to prevent stalls in the WAITING_TXN state under exception conditions (schemachange path). This fixes a long-running job risk and enhances reliability of index migrations. Major bugs fixed: - Fixed an issue where IndexChangeJob could get stuck in WAITING_TXN due to an exception; commit 587aecb03c740995326e0037821334d977d229aa addresses Issue #60746 and is linked to PR #60754. Overall impact and accomplishments: - Improved stability and reliability of index change operations, reducing production incidents related to job hangs and enabling more predictable data schema changes. Technologies/skills demonstrated: - Debugging complex state-machine workflows in the schemachange pipeline. - Reading, validating, and integrating fix commits (including cross-reference to issues and PRs). - Maintaining code health with minimal regression risk and collaborative cross-team coordination. Next steps / notes: - Consider adding regression tests for the WAITING_TXN exception path and documenting the fix for future releases.

July 2025 performance snapshot for Jibing-Li/incubator-doris: Focused on stabilizing backup behavior for temporary tables in cloud environments and improving test coverage. Key outcomes: In cloud mode, backup operations for temporary tables are now correctly treated as unsupported, reducing failure rates in cloud deployments. In non-cloud modes, temporary tables are properly excluded from multi-table backups, improving backup accuracy and reliability. The work strengthens regression coverage and aligns behavior with deployment environments, delivering tangible business value by reducing backup incidents and ensuring predictable backups across cloud and non-cloud deployments. Tech emphasis: cloud environment handling, backup workflow logic, regression testing, and commit-level traceability. Commit: 2bfe3575e4911770e7ad9b85857a9f0c319e58ee (fix) update backup cases in cloud env for temporary table (#53673).

May 2025 monthly summary for apache/doris-website: Implemented Temporary Tables documentation and syntax update; bilingual EN/ZH coverage; improved onboarding and alignment with code base; key milestone supporting PR #2394.

March 2025 monthly achievements focused on delivering a core capability for transient data handling within user sessions. Delivered the Session Temporary Tables feature for the incubator-doris repository, enabling temporary, session-scoped data storage that is automatically cleaned up when the session ends or the frontend crashes. The feature aligns with MySQL-like behavior for transient data and reduces the need for persistent storage for ephemeral workloads.

January 2025 performance summary focused on correctness and reliability improvements in the Doris repository (Jibing-Li/incubator-doris). Delivered targeted bug fixes that enhance data integrity and parsing accuracy, strengthening reliability for production deployments. Core work includes preserving partition-specific storage policies when creating tables with CREATE TABLE LIKE, and correcting microsecond handling in str_to_date.