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kangkaisen

PROFILE

Kangkaisen

Over six months, contributed to StarRocks repositories by delivering cross-platform backend features, build system enhancements, and analytics improvements. Focused on enabling reliable macOS and Apple Silicon development, this work included CMake and shell scripting to streamline builds, resolve ABI and dependency issues, and introduce platform-specific tooling. Addressed bugs affecting build stability, runtime reliability, and data processing, while also optimizing algorithms for analytics accuracy and memory management. Enhanced developer experience with startup scripts and improved error handling in backend services. Leveraged C++, Bash, and SQL to ensure robust, maintainable code, supporting both developer productivity and the stability of StarRocks systems.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

29Total
Bugs
8
Commits
29
Features
8
Lines of code
12,073
Activity Months6

Work History

March 2026

3 Commits • 2 Features

Mar 1, 2026

March 2026 (2026-03) monthly summary for StarRocks/starrocks: delivered targeted feature enhancements and a high-impact bug fix that improve analytics accuracy, performance, and reliability across core processing paths.

January 2026

4 Commits • 2 Features

Jan 1, 2026

January 2026 monthly summary for pinterest/starrocks focused on delivering developer-experience improvements on macOS, hardening build/reliability, and improving parsing robustness. Key outcomes include macOS startup scripts, macOS compile issue fixes, logging optimization in IcebergMetadataScanNode, and robust URL parsing with clearer error handling, all contributing to faster onboarding, reduced support overhead, and improved runtime performance.

December 2025

1 Commits

Dec 1, 2025

December 2025: Stabilized cross-platform builds in pinterest/starrocks with a focused macOS fix, delivering reliable macOS compilation by excluding problematic files and adding stubs for lookup functionality. The change reduces CI/build noise on macOS and improves developer productivity, setting the stage for smoother multi-OS support across the project. Commit reference provides traceability for the change.

November 2025

6 Commits • 1 Features

Nov 1, 2025

November 2025 monthly summary for pinterest/starrocks. Focused on delivering cross-platform stability, ABI resilience, and developer productivity improvements with direct business value: fewer macOS build blockers, more reliable runtime behavior, and a new data-processing utility.

October 2025

11 Commits • 1 Features

Oct 1, 2025

October 2025 (2025-10) monthly summary for crossoverJie/starrocks: Delivered comprehensive MacOS compatibility and Apple Silicon support for the StarRocks backend, consolidating cross‑platform readiness and developer productivity. Key work included a full suite of macOS build system enablement: updates to CMakeLists.txt, build scripts (including build_be.sh), and cross‑platform tooling to streamline macOS builds. Established macOS‑specific shims and platform tweaks for third‑party dependencies (protobuf, LevelDB, RocksDB/VectorScan, bitshuffle) to ensure stable compilation and runtime on Apple Silicon. Impact: Significantly reduced macOS build failures, accelerated local development for macOS developers, and improved CI reliability. The work directly enables faster feature delivery and easier onboarding for Mac users contributing to StarRocks. Technologies/skills demonstrated: CMake, macOS build tooling and scripting, shell scripting, cross‑platform build system design, protobuf/LevelDB/RocksDB integration, VectorScan optimizations, bitshuffle shims, and macOS frontend/backend script improvements.

September 2025

4 Commits • 2 Features

Sep 1, 2025

In September 2025, delivered key platform enhancements in crossoverJie/starrocks, focusing on observability, cross-platform support, and auditability. The month solidified business value by improving runtime visibility for queries, strengthening security/compliance through enhanced audit logs, and enabling Apple Silicon (macOS ARM64) development and builds.

Activity

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Quality Metrics

Correctness90.8%
Maintainability84.6%
Architecture86.2%
Performance78.2%
AI Usage22.8%

Skills & Technologies

Programming Languages

BashCC++CMakeJavaMarkdownPythonSQLShellbash

Technical Skills

Algorithm OptimizationBackend DevelopmentBug FixingBuild AutomationBuild ScriptingBuild System ConfigurationBuild SystemsBuild Systems (CMake)C++C++ DevelopmentC++ developmentCI/CDCMakeCross-Platform DevelopmentCross-platform Compatibility

Repositories Contributed To

3 repos

Overview of all repositories you've contributed to across your timeline

crossoverJie/starrocks

Sep 2025 Oct 2025
2 Months active

Languages Used

BashJavaMarkdownShellCC++CMakePython

Technical Skills

Backend DevelopmentBug FixingBuild AutomationBuild System ConfigurationDependency ManagementDocumentation

pinterest/starrocks

Nov 2025 Jan 2026
3 Months active

Languages Used

C++CMakeSQLShellJavabash

Technical Skills

C++ developmentCMakeSQL query optimizationShell scriptingarray manipulationbug fixing

StarRocks/starrocks

Mar 2026 Mar 2026
1 Month active

Languages Used

C++

Technical Skills

Algorithm OptimizationC++Data StructuresDatabase SystemsMemory ManagementUnit Testing