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jiangjiguang

PROFILE

Jiangjiguang

Worked on the crossoverJie/starrocks repository to improve core infrastructure reliability and consistency over a two-month period. Addressed critical issues in Java and Shell environments by stabilizing the CI and unit testing workflow, ensuring the jmockit jar was reliably available during automated test runs. Enhanced the hashing logic in core data structures by updating PartitionKey and Expr to generate stable hash codes across JVM instances, reducing cross-node inconsistencies in distributed workloads. Focused on bug fixes rather than feature development, applying skills in Java development, build scripting, and unit testing to deliver maintainable solutions that support long-term project stability and correctness.

Overall Statistics

Feature vs Bugs

0%Features

Repository Contributions

2Total
Bugs
2
Commits
2
Features
0
Lines of code
17
Activity Months2

Your Network

86 people

Same Organization

@didiglobal.com
16
Taotao ChenMember
dongxingxingdongMember
didiMember
wenwenMember
jeffjiangMember
lareinayanyuMember
liuwenkangMember
mackwangMember
shangqunfengMember

Work History

April 2025

1 Commits

Apr 1, 2025

April 2025 monthly summary for crossoverJie/starrocks: Implemented a stability improvement for hashing in core data structures. Fixed inconsistent hashCode across JVM instances by enhancing PartitionKey.hashCode to incorporate PrimitiveType descriptions and adjusting Expr.java to hash using opcode values. This targeted a root cause reported in #57685 and is delivered as part of the starrocks repository. Business value includes more reliable hash-based routing, consistent partitioning, and reduced cross-node bugs in distributed workloads.

February 2025

1 Commits

Feb 1, 2025

February 2025 monthly summary for crossoverJie/starrocks: This period focused on strengthening test reliability in the CI/test workflow. The primary deliverable was a bug fix to ensure the jmockit jar is located and accessible during unit tests executed via run-fe-ut.sh, reducing flaky test runs and preventing build/test failures. No user-facing features were shipped this month; the work contributes to long-term stability and faster feedback loops for feature development.

Activity

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Quality Metrics

Correctness90.0%
Maintainability90.0%
Architecture80.0%
Performance80.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

JavaShell

Technical Skills

Bug FixBuild ScriptingHashingJava DevelopmentUnit Testing

Repositories Contributed To

1 repo

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

crossoverJie/starrocks

Feb 2025 Apr 2025
2 Months active

Languages Used

ShellJava

Technical Skills

Build ScriptingUnit TestingBug FixHashingJava Development