
Lidongyang contributed to the apache/doris repository by engineering robust CI/CD pipelines and stabilizing automated regression testing for large-scale data workloads. Over 16 months, he delivered features that improved build reliability, accelerated feedback loops, and reduced operational costs, leveraging technologies such as C++, Shell scripting, and Docker. His work included optimizing test orchestration, refining cloud storage integration, and enhancing code coverage reporting, all while maintaining cross-platform consistency and addressing complex build system challenges. By implementing targeted bug fixes and configuration improvements, Lidongyang ensured more predictable releases and efficient development cycles, demonstrating depth in backend development, DevOps, and continuous integration practices.
February 2026 monthly summary for the apache/doris repository focusing on build reliability and bug fixes. The main deliverable was a targeted workaround to resolve a compile-time error without altering program logic, improving CI stability and release readiness.
February 2026 monthly summary for the apache/doris repository focusing on build reliability and bug fixes. The main deliverable was a targeted workaround to resolve a compile-time error without altering program logic, improving CI stability and release readiness.
January 2026 – Apache Doris (apache/doris). Focused on CI/Regression pipeline optimization, enhanced diagnostics, and regression test accuracy. Delivered changes that reduce release cycle times, improve debugging efficiency, and strengthen regression coverage across the repo.
January 2026 – Apache Doris (apache/doris). Focused on CI/Regression pipeline optimization, enhanced diagnostics, and regression test accuracy. Delivered changes that reduce release cycle times, improve debugging efficiency, and strengthen regression coverage across the repo.
December 2025 focused on stabilizing the Doris CI pipeline to improve build reliability, reduce flaky failures, and lower maintenance costs. Delivered a batch of CI stability and regression configuration improvements spanning test exclusion, regression optimization, thrift setup branch conditions, macOS runner updates, and backup path clarification. These changes yielded faster feedback loops, safer releases, and cross‑platform consistency for Doris.
December 2025 focused on stabilizing the Doris CI pipeline to improve build reliability, reduce flaky failures, and lower maintenance costs. Delivered a batch of CI stability and regression configuration improvements spanning test exclusion, regression optimization, thrift setup branch conditions, macOS runner updates, and backup path clarification. These changes yielded faster feedback loops, safer releases, and cross‑platform consistency for Doris.
November 2025 performance summary: Focused on stabilizing the CI regression framework for apache/doris and reducing cloud data transfer costs. Delivered reliable regression automation, targeted test case management, and cost-effective data paths, enabling faster feedback, lower operational risk, and more predictable release cycles.
November 2025 performance summary: Focused on stabilizing the CI regression framework for apache/doris and reducing cloud data transfer costs. Delivered reliable regression automation, targeted test case management, and cost-effective data paths, enabling faster feedback, lower operational risk, and more predictable release cycles.
October 2025 monthly summary – apache/doris. This period focused on strengthening CI reliability and test stability by delivering a performance-test orchestration feature and aligning test resources with the latest locations. Key contributions include constraining performance tests to the master branch with more flexible trigger conditions, and updating test resource URLs for JDBC drivers to ensure tests access the correct drivers. Collectively, these changes reduced CI noise, improved pipeline throughput, and enhanced overall test reliability for Doris builds.
October 2025 monthly summary – apache/doris. This period focused on strengthening CI reliability and test stability by delivering a performance-test orchestration feature and aligning test resources with the latest locations. Key contributions include constraining performance tests to the master branch with more flexible trigger conditions, and updating test resource URLs for JDBC drivers to ensure tests access the correct drivers. Collectively, these changes reduced CI noise, improved pipeline throughput, and enhanced overall test reliability for Doris builds.
September 2025 performance and CI focus for apache/doris. Emphasis on stabilizing CI, reducing test flakiness, and accelerating feedback loops across multiple branches. Delivered targeted stability fixes and CI workflow enhancements that improve reliability, cross-branch coverage, and overall release readiness.
September 2025 performance and CI focus for apache/doris. Emphasis on stabilizing CI, reducing test flakiness, and accelerating feedback loops across multiple branches. Delivered targeted stability fixes and CI workflow enhancements that improve reliability, cross-branch coverage, and overall release readiness.
August 2025: Delivered core CI/CD enhancements for the apache/doris project, reintroduced essential database features, and stabilized testing to improve reliability and correctness. Key initiatives boosted pipeline reliability and performance, enabled schema changes, and ensured test correctness, delivering measurable business value through faster feedback and more robust deployments.
August 2025: Delivered core CI/CD enhancements for the apache/doris project, reintroduced essential database features, and stabilized testing to improve reliability and correctness. Key initiatives boosted pipeline reliability and performance, enabled schema changes, and ensured test correctness, delivering measurable business value through faster feedback and more robust deployments.
July 2025 monthly summary for apache/doris focusing on CI/CD hardening and performance reliability. The month delivered a substantial upgrade to CI pipelines, enhanced error-detection, and stronger quality gates across master and feature branches. The team also refreshed CI infrastructure and introduced sanitizer options to improve test reproducibility and reduce noise in CI feedback.
July 2025 monthly summary for apache/doris focusing on CI/CD hardening and performance reliability. The month delivered a substantial upgrade to CI pipelines, enhanced error-detection, and stronger quality gates across master and feature branches. The team also refreshed CI infrastructure and introduced sanitizer options to improve test reproducibility and reduce noise in CI feedback.
June 2025: Doris development work focused on stabilizing critical data-path behavior and accelerating CI feedback loops. Key changes include reverting a problematic fix that caused Java heap space OutOfMemoryError in StreamLoadAction for a targeted test, and delivering a suite of CI stability and performance improvements to speed up pipelines and increase reliability. The combined effect is more predictable deployments, reduced flaky tests, and faster validation of changes across the Doris codebase.
June 2025: Doris development work focused on stabilizing critical data-path behavior and accelerating CI feedback loops. Key changes include reverting a problematic fix that caused Java heap space OutOfMemoryError in StreamLoadAction for a targeted test, and delivering a suite of CI stability and performance improvements to speed up pipelines and increase reliability. The combined effect is more predictable deployments, reduced flaky tests, and faster validation of changes across the Doris codebase.
May 2025: Strengthened CI reliability, hardened test and deployment workflows, and improved large-table query stability in the apache/doris repository. Delivered focused CI/test improvements, robust shutdown sequences, tighter PR gating, and a fix for large-table execution timeouts, delivering faster feedback, reduced CI churn, and more reliable production queries.
May 2025: Strengthened CI reliability, hardened test and deployment workflows, and improved large-table query stability in the apache/doris repository. Delivered focused CI/test improvements, robust shutdown sequences, tighter PR gating, and a fix for large-table execution timeouts, delivering faster feedback, reduced CI churn, and more reliable production queries.
Monthly summary for 2025-04 focusing on stabilization and CI improvements in apache/doris. Key actions included reverting a problematic Hive JsonSerDe integration, fixing an aarch64 compilation issue in JindoFS, and streamlining CI by removing macOS-specific third-party library builds. These changes reduced build failures and CI noise, enabling smoother delivery of data ingestion and storage features in the Doris project.
Monthly summary for 2025-04 focusing on stabilization and CI improvements in apache/doris. Key actions included reverting a problematic Hive JsonSerDe integration, fixing an aarch64 compilation issue in JindoFS, and streamlining CI by removing macOS-specific third-party library builds. These changes reduced build failures and CI noise, enabling smoother delivery of data ingestion and storage features in the Doris project.
March 2025 summary for apache/doris: Delivered reliability and maintainability enhancements across CI/CD and test pipelines. Key features included hardening the CI workflow with TeamCity PR-trigger improvements, per-branch dependency URL handling, removal of obsolete scripts, and PR validation extended to the dev branch with a consistent Java setup. Major bugs fixed include stability improvements for UDF regression tests through simplified SSH-backed directory creation and alignment of regression test data file naming. Overall impact: reduced CI/QA flakiness, faster feedback for developers, and safer, more scalable release readiness. Technologies demonstrated: CI/CD automation (TeamCity), build and dependency management, Java environment standardization, SSH scripting, and test-data governance.
March 2025 summary for apache/doris: Delivered reliability and maintainability enhancements across CI/CD and test pipelines. Key features included hardening the CI workflow with TeamCity PR-trigger improvements, per-branch dependency URL handling, removal of obsolete scripts, and PR validation extended to the dev branch with a consistent Java setup. Major bugs fixed include stability improvements for UDF regression tests through simplified SSH-backed directory creation and alignment of regression test data file naming. Overall impact: reduced CI/QA flakiness, faster feedback for developers, and safer, more scalable release readiness. Technologies demonstrated: CI/CD automation (TeamCity), build and dependency management, Java environment standardization, SSH scripting, and test-data governance.
February 2025 | Apache Doris (apache/doris) — Monthly work summary focused on stabilizing the regression testing workflow, reducing CI costs, and strengthening observability across the pipeline.
February 2025 | Apache Doris (apache/doris) — Monthly work summary focused on stabilizing the regression testing workflow, reducing CI costs, and strengthening observability across the pipeline.
January 2025 monthly performance summary for repository apache/doris. Focused on delivering automated cloud-storage testing capabilities, stabilizing CI pipelines, and enhancing test coverage reporting, with concrete commits and measurable impact on reliability and cloud readiness.
January 2025 monthly performance summary for repository apache/doris. Focused on delivering automated cloud-storage testing capabilities, stabilizing CI pipelines, and enhancing test coverage reporting, with concrete commits and measurable impact on reliability and cloud readiness.
December 2024 summary for apache/doris focused on stabilizing CI pipelines, accelerating feedback loops, and improving observability. Key changes balanced faster builds with performance quality while expanding pipeline visibility to detect issues earlier, enabling quicker post-merge validation and release readiness.
December 2024 summary for apache/doris focused on stabilizing CI pipelines, accelerating feedback loops, and improving observability. Key changes balanced faster builds with performance quality while expanding pipeline visibility to detect issues earlier, enabling quicker post-merge validation and release readiness.
2024-11 monthly summary for apache/doris: Focused on delivering robust CI/regression capabilities, stabilizing test suites, and aligning data-loading endpoints with cloud storage. Business value centered on faster feedback loops, improved data reliability in tests, and stronger CI/automation.
2024-11 monthly summary for apache/doris: Focused on delivering robust CI/regression capabilities, stabilizing test suites, and aligning data-loading endpoints with cloud storage. Business value centered on faster feedback loops, improved data reliability in tests, and stronger CI/automation.

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