PKUHPC/CraneSched
Nov 2025 – Apr 2026
5 Months active
Languages Used
C++YAMLCMakeMarkdownPythonShell
Technical Skills
C++ programminglog managementsystem configurationC++C++ developmentCode Quality Improvement
edragain
PROFILE
Edragain
Worked on PKUHPC/CraneSched, delivering six features and a major bug fix over five months to enhance cluster management and job scheduling. Developed log rotation and retention controls to improve observability and prevent disk overuse, and implemented deadline scheduling for batch jobs via the cbatch command, increasing throughput and SLA adherence. Introduced DNS configuration for container jobs, node health diagnostics, and job submission host tracking, all supported by updates to documentation and database schemas. Used C++, CMake, and Python to refactor backend logic, improve error handling, and streamline configuration management, resulting in more reliable deployments and maintainable codebases.
Overall Statistics
Feature vs Bugs
86%Features
Repository Contributions
10Total
Bugs
1
Commits
10
Features
6
Lines of code
109,250
Activity Months5
Your Network
4 peopleShared Repositories
4
Work History
April 2026
1 Commits • 1 Features
Apr 1, 2026Month: 2026-04 – CraneSched delivered the Cbatch Job Deadline Scheduling feature, enabling users to set deadlines for batch jobs directly in the cbatch command, improving scheduling predictability and throughput. The feature was shipped with commit 0cf82617ef51b5750feed15bc3f96c9e4ed4ec04 (feat: add cbatch --deadline (#630)) and included a formatting fix as part of the same effort. No major bugs were reported/closed this month; efforts focused on feature delivery and code quality. Overall impact: enhanced user control over job timelines, reduced queue wait times, and better SLA adherence for batch processing. Technologies/skills demonstrated: CLI feature development, Git-based incremental delivery, and attention to code quality (commit hygiene and formatting).
1 Commits • 1 Features
Apr 1, 2026Month: 2026-04 – CraneSched delivered the Cbatch Job Deadline Scheduling feature, enabling users to set deadlines for batch jobs directly in the cbatch command, improving scheduling predictability and throughput. The feature was shipped with commit 0cf82617ef51b5750feed15bc3f96c9e4ed4ec04 (feat: add cbatch --deadline (#630)) and included a formatting fix as part of the same effort. No major bugs were reported/closed this month; efforts focused on feature delivery and code quality. Overall impact: enhanced user control over job timelines, reduced queue wait times, and better SLA adherence for batch processing. Technologies/skills demonstrated: CLI feature development, Git-based incremental delivery, and attention to code quality (commit hygiene and formatting).
April 2026
March 2026
4 Commits • 2 Features
Mar 1, 2026March 2026 — PKUHPC/CraneSched: Delivered two major features to enhance cluster observability, health diagnostics, and job traceability. No major bugs fixed this month; focus was on feature delivery, data visibility, and documentation to support faster troubleshooting and auditing.
March 2026
4 Commits • 2 Features
Mar 1, 2026March 2026 — PKUHPC/CraneSched: Delivered two major features to enhance cluster observability, health diagnostics, and job traceability. No major bugs fixed this month; focus was on feature delivery, data visibility, and documentation to support faster troubleshooting and auditing.
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary focusing on PKUHPC/CraneSched DNS Configuration for Container Jobs feature, DNS-related YAML parsing fixes, and documentation updates. Implemented DNS options for container jobs to improve service discovery and connectivity within the container orchestration framework. Fixed YAML parsing issues related to DNS settings and aligned related DB fields and annotations. Resulting improvements include more reliable deployments, reduced troubleshooting time, and clearer developer/user guidance.
1 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary focusing on PKUHPC/CraneSched DNS Configuration for Container Jobs feature, DNS-related YAML parsing fixes, and documentation updates. Implemented DNS options for container jobs to improve service discovery and connectivity within the container orchestration framework. Fixed YAML parsing issues related to DNS settings and aligned related DB fields and annotations. Resulting improvements include more reliable deployments, reduced troubleshooting time, and clearer developer/user guidance.
February 2026
January 2026
3 Commits • 1 Features
Jan 1, 2026January 2026: Reliability improvements through substantial bug fixes to account modification logic and the introduction of a Default Node Health Check. These changes enhance correctness, observability, and proactive health management, aligning with business goals of reducing outages and smoothing maintenance.
January 2026
3 Commits • 1 Features
Jan 1, 2026January 2026: Reliability improvements through substantial bug fixes to account modification logic and the introduction of a Default Node Health Check. These changes enhance correctness, observability, and proactive health management, aligning with business goals of reducing outages and smoothing maintenance.
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025 (Month: 2025-11) — PKUHPC/CraneSched Key features delivered: - Log Rotation and Retention Configuration: Adds configuration options to set maximum log file size and maximum number of log files for various components, improving log management and preventing excessive disk usage. Commit: 302f1e7a9aa1137fe3d2105895b1d05349ec9b44 Major bugs fixed: - None reported in this period. Overall impact and accomplishments: - Improved observability and reliability by enabling configurable log retention, reducing disk pressure and simplifying troubleshooting. This groundwork supports scalable operations and easier maintenance. Technologies/skills demonstrated: - Logging subsystem configuration and feature delivery in the backend; code quality improvements including formatting, refactors (value_or usage), error handling adjustments, and updated documentation.
1 Commits • 1 Features
Nov 1, 2025November 2025 (Month: 2025-11) — PKUHPC/CraneSched Key features delivered: - Log Rotation and Retention Configuration: Adds configuration options to set maximum log file size and maximum number of log files for various components, improving log management and preventing excessive disk usage. Commit: 302f1e7a9aa1137fe3d2105895b1d05349ec9b44 Major bugs fixed: - None reported in this period. Overall impact and accomplishments: - Improved observability and reliability by enabling configurable log retention, reducing disk pressure and simplifying troubleshooting. This groundwork supports scalable operations and easier maintenance. Technologies/skills demonstrated: - Logging subsystem configuration and feature delivery in the backend; code quality improvements including formatting, refactors (value_or usage), error handling adjustments, and updated documentation.
November 2025
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Quality Metrics
Correctness90.0%
Maintainability84.0%
Architecture84.0%
Performance84.0%
AI Usage28.0%
Skills & Technologies
Programming Languages
C++CMakeMarkdownPythonShellYAML
Technical Skills
C++C++ developmentC++ programmingCI/CDCMakeCode Quality ImprovementError HandlingGitPythonSoftware Refactoringbackend developmentcommand line interface designconfiguration managementcontainer orchestrationdatabase management
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