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zhangm365

PROFILE

Zhangm365

Ming Zhang focused on backend stability and reliability across the incubator-doris and pinterest/starrocks repositories, addressing critical bugs in authentication, query planning, and build systems. He improved Kerberos ticket management by resolving compile-time errors in C++, enhancing authentication reliability. In Java, he fixed a null pointer crash in the Nereids planner and expanded regression testing to prevent future issues. Ming also strengthened memory safety in expression tree construction by refining shared_ptr handling, reducing crash risk during query execution. Additionally, he modernized the build system for macOS M1 compatibility, migrating from Make to CMake to streamline cross-platform development and onboarding.

Overall Statistics

Feature vs Bugs

0%Features

Repository Contributions

4Total
Bugs
4
Commits
4
Features
0
Lines of code
407
Activity Months4

Work History

December 2025

1 Commits

Dec 1, 2025

December 2025 monthly summary for pinterest/starrocks. Focused on improving macOS M1 compatibility and modernizing the build system to improve cross-platform reliability and developer productivity.

April 2025

1 Commits

Apr 1, 2025

Month: 2025-04. Focused on ensuring memory safety during expression tree creation in Jibing-Li/incubator-doris, delivering a fix to prevent use-after-free scenarios by copying a shared_ptr before popping the stack. This change strengthens resource management during expression evaluation, reducing crash risk and improving stability in query planning/execution.

March 2025

1 Commits

Mar 1, 2025

Summary for 2025-03: Focused on stability and reliability improvements in the Nereids planner within incubator-doris. Delivered a critical crash fix and strengthened test coverage to prevent regression, enabling safer planning queries and more robust memo handling in production. This work reduces crash risk and improves production readiness for Nereids-driven workloads.

February 2025

1 Commits

Feb 1, 2025

February 2025: Focused on stabilizing Kerberos Ticket Management in the incubator-doris repository, delivering a build-stable component and reducing authentication-related risk. Emphasis on reliability, maintainability, and value delivery for the auth subsystem to support downstream features and deployments.

Activity

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Quality Metrics

Correctness95.0%
Maintainability90.0%
Architecture90.0%
Performance90.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++GroovyJavaSQLShell

Technical Skills

Backend DevelopmentBug FixingBuild system configurationC++C++ developmentExpression TreesGroovyJava DevelopmentKerberosMemory SafetyResource ManagementSQLTestingmacOS development

Repositories Contributed To

2 repos

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

Jibing-Li/incubator-doris

Feb 2025 Apr 2025
3 Months active

Languages Used

C++GroovyJavaSQL

Technical Skills

Backend DevelopmentC++KerberosBug FixingJava DevelopmentSQL

pinterest/starrocks

Dec 2025 Dec 2025
1 Month active

Languages Used

C++Shell

Technical Skills

Build system configurationC++ developmentmacOS development