apache/tsfile
Mar 2026 – Apr 2026
2 Months active
Languages Used
C++CPythonRDFYAML
Technical Skills
C++ developmentdata handlingperformance optimizationsoftware designtestingunit testing
Hongzhi Gao
PROFILE
Hongzhi Gao
Worked on the apache/tsfile repository over two months, delivering seven features and resolving three bugs to enhance data reliability and cross-language operability. Focused on C++ and Python, the work included aligning C++ model page sealing with Java semantics, optimizing performance with a strict_page_size toggle, and introducing a robust Path class for device path management. Developed a cross-language timeseries metadata interface, improved query handling for missing devices, and strengthened multi-recovery metadata indexing. Release management and CI/CD improvements expanded Python compatibility and test coverage. Emphasized memory management, error handling, and data structure optimization to support efficient, reliable data processing workflows.
Overall Statistics
Feature vs Bugs
70%Features
Repository Contributions
14Total
Bugs
3
Commits
14
Features
7
Lines of code
3,687
Activity Months2
Your Network
716 peopleSame Organization
@apache.org696
a.huberMember
Akira AjisakaMember
Andrzej BiałeckiMember
Arturo BernalMember
Abhishek KumarMember
Attila BukorMember
VampireAchaoMember
Abhishek ChennakaMember
Andreas DangelMember
Work History
April 2026
11 Commits • 5 Features
Apr 1, 2026April 2026 monthly summary for apache/tsfile: Delivered a set of cross-language metadata and data integrity enhancements, plus release and CI improvements that strengthen reliability, interoperability, and time-to-value for data-heavy workloads. Key outcomes include a cross-language timeseries metadata interface with index-alignment verification (C/Python) and accompanying tests; decoding-path safeguards to prevent desynchronization by requiring time and value statistics to align; robust queryByRow handling to skip missing devices/measurements and manage multi-segment IDs with regression tests; reliable multi-recovery metadata indexing to avoid duplicate-device failures; statistics restoration and alignment improvements for more robust data structures; and a major TsFile 2.3.0 release with enhanced C++ interfaces and Python integration, complemented by CI improvements and expanded Python compatibility (Linux wheels, 3.9/3.11/3.14). Business value: improved data reliability, cross-language operability, streamlined release processes, and stronger onboarding for contributors.
11 Commits • 5 Features
Apr 1, 2026April 2026 monthly summary for apache/tsfile: Delivered a set of cross-language metadata and data integrity enhancements, plus release and CI improvements that strengthen reliability, interoperability, and time-to-value for data-heavy workloads. Key outcomes include a cross-language timeseries metadata interface with index-alignment verification (C/Python) and accompanying tests; decoding-path safeguards to prevent desynchronization by requiring time and value statistics to align; robust queryByRow handling to skip missing devices/measurements and manage multi-segment IDs with regression tests; reliable multi-recovery metadata indexing to avoid duplicate-device failures; statistics restoration and alignment improvements for more robust data structures; and a major TsFile 2.3.0 release with enhanced C++ interfaces and Python integration, complemented by CI improvements and expanded Python compatibility (Linux wheels, 3.9/3.11/3.14). Business value: improved data reliability, cross-language operability, streamlined release processes, and stronger onboarding for contributors.
April 2026
March 2026
3 Commits • 2 Features
Mar 1, 2026Monthly summary for 2026-03 focusing on key business value and technical achievements for apache/tsfile. Delivered two cross-cutting features, improved performance, enhanced device path parsing, and stabilized the test suite. Key outcomes include: improved alignment between C++ and Java semantics in model page sealing, performance optimizations with strict_page_size toggle, more robust device_id parsing via a new Path class, and a more reliable CI by disabling flaky tests.
March 2026
3 Commits • 2 Features
Mar 1, 2026Monthly summary for 2026-03 focusing on key business value and technical achievements for apache/tsfile. Delivered two cross-cutting features, improved performance, enhanced device path parsing, and stabilized the test suite. Key outcomes include: improved alignment between C++ and Java semantics in model page sealing, performance optimizations with strict_page_size toggle, more robust device_id parsing via a new Path class, and a more reliable CI by disabling flaky tests.
Activity
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Quality Metrics
Correctness88.6%
Maintainability82.8%
Architecture82.8%
Performance82.8%
AI Usage24.2%
Skills & Technologies
Programming Languages
CC++PythonRDFYAML
Technical Skills
API designC programmingC++C++ developmentCI/CDData RecoveryData structuresDataFrame manipulationError HandlingGitHub ActionsMemory managementPython TestingPython developmentPython packagingPython programming
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