ydb-platform/ydb
Sep 2025 – Feb 2026
5 Months active
Languages Used
MarkdownC++Python
Technical Skills
DocumentationBackend DevelopmentC++DatabaseDatabase InternalsDistributed Systems
avpershin
PROFILE
Avpershin
Worked on the ydb-platform/ydb repository, delivering features that enhanced distributed database reliability, scalability, and developer experience. Focused on backend development and system design using C++ and Python, they implemented CPU-aware partitioning and load-based split/merge logic to optimize performance and resource distribution across leader and follower nodes. Their work included expanding automated test coverage, improving observability through new metrics and configuration options, and refining documentation to streamline onboarding. They addressed critical bugs in read-path handling and build stability, while also introducing UI-level controls for explicit follower management. These contributions improved throughput, reduced latency, and supported robust, maintainable operations at scale.
Overall Statistics
Feature vs Bugs
78%Features
Repository Contributions
13Total
Bugs
2
Commits
13
Features
7
Lines of code
8,488
Activity Months5
Your Network
580 peopleShared Repositories
479
Aleksandr DuplishchevMember
3y3k0Member
a-dyuMember
Anton RomanovMember
Andrey MaslovMember
aaprokopyevMember
aavorotnikovMember
abityugovMember
abramov-alexMember
Work History
February 2026
3 Commits • 2 Features
Feb 1, 2026February 2026 monthly summary for ydb-platform/ydb. Focused on delivering core distributed data management improvements, expanding observability and reliability through UI-level controls, expanded test coverage, and build stability fixes.
3 Commits • 2 Features
Feb 1, 2026February 2026 monthly summary for ydb-platform/ydb. Focused on delivering core distributed data management improvements, expanding observability and reliability through UI-level controls, expanded test coverage, and build stability fixes.
February 2026
December 2025
2 Commits • 1 Features
Dec 1, 2025December 2025: Delivered CPU-Aware Split-by-Load Partitioning for ydb, improving load distribution and performance by considering CPU metrics on both leaders and replicas when deciding to split or merge partitions. Implemented automated tests for default CPU thresholds on leader and follower, clarified follower-based split/merge logic, and tightened configuration thresholds and logs to enhance observability and stability. The work yields better throughput, lower tail latency, and more reliable ops.
December 2025
2 Commits • 1 Features
Dec 1, 2025December 2025: Delivered CPU-Aware Split-by-Load Partitioning for ydb, improving load distribution and performance by considering CPU metrics on both leaders and replicas when deciding to split or merge partitions. Implemented automated tests for default CPU thresholds on leader and follower, clarified follower-based split/merge logic, and tightened configuration thresholds and logs to enhance observability and stability. The work yields better throughput, lower tail latency, and more reliable ops.
November 2025
2 Commits • 1 Features
Nov 1, 2025November 2025 (2025-11) delivered reliability and scalability enhancements for ydb platform. Key outcomes include a bug fix and read-path hardening in the EvRead handler, notable read-throughput gains for complex queries, and load-aware partition management that improves shard balance under varying follower CPU load. Added configurations, metrics, and unit tests to support CPU-aware split/merge decisions and richer telemetry, boosting scalability and observability across leaders and followers.
2 Commits • 1 Features
Nov 1, 2025November 2025 (2025-11) delivered reliability and scalability enhancements for ydb platform. Key outcomes include a bug fix and read-path hardening in the EvRead handler, notable read-throughput gains for complex queries, and load-aware partition management that improves shard balance under varying follower CPU load. Added configurations, metrics, and unit tests to support CPU-aware split/merge decisions and richer telemetry, boosting scalability and observability across leaders and followers.
November 2025
October 2025
4 Commits • 2 Features
Oct 1, 2025October 2025 monthly summary for ydb-platform/ydb focused on improving shard split robustness and SchemeShard load management. Key features delivered include test coverage for split-by-load behavior (including follower-load scenarios) and tests for concurrent/duplicate split-by-load transactions, as well as CPU usage tracking improvements and load-based merge tests in SchemeShard. These efforts lay groundwork for future feature implementation, enhance reliability under load, and improve performance at scale.
October 2025
4 Commits • 2 Features
Oct 1, 2025October 2025 monthly summary for ydb-platform/ydb focused on improving shard split robustness and SchemeShard load management. Key features delivered include test coverage for split-by-load behavior (including follower-load scenarios) and tests for concurrent/duplicate split-by-load transactions, as well as CPU usage tracking improvements and load-based merge tests in SchemeShard. These efforts lay groundwork for future feature implementation, enhance reliability under load, and improve performance at scale.
September 2025
2 Commits • 1 Features
Sep 1, 20252025-09 Monthly summary for ydb-platform/ydb focused on documentation quality and developer onboarding. Delivered targeted documentation improvements and clarified transaction mode descriptions to reduce onboarding time and support friction. No major bug fixes were reported this month.
2 Commits • 1 Features
Sep 1, 20252025-09 Monthly summary for ydb-platform/ydb focused on documentation quality and developer onboarding. Delivered targeted documentation improvements and clarified transaction mode descriptions to reduce onboarding time and support friction. No major bug fixes were reported this month.
September 2025
Activity
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Quality Metrics
Correctness93.8%
Maintainability86.2%
Architecture89.2%
Performance83.0%
AI Usage26.2%
Skills & Technologies
Programming Languages
C++MarkdownPython
Technical Skills
Backend DevelopmentC++C++ developmentC++ programmingDatabaseDatabase InternalsDistributed SystemsDocumentationPerformance OptimizationPythonRefactoringSystem DesignSystem ProgrammingTestingUnit Testing
Repositories Contributed To
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