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Innokentii Mokin

PROFILE

Innokentii Mokin

Over ten months, contributed to ydb-platform/ydb by engineering robust backup, restore, and configuration management features focused on reliability and operational safety. Developed incremental backup and restore workflows, lifecycle management for long-running operations, and granular index-level backup capabilities, leveraging C++, Python, and Protocol Buffers. Enhanced system stability through transactional state management, schema versioning, and improved error handling, while introducing tools for YAML configuration merging and test automation. Addressed edge cases in access control and backup collection handling, reducing downtime and manual intervention. The work emphasized maintainability, traceability, and data integrity, resulting in resilient distributed database operations and streamlined disaster recovery.

Overall Statistics

Feature vs Bugs

73%Features

Repository Contributions

48Total
Bugs
7
Commits
48
Features
19
Lines of code
25,278
Activity Months10

Your Network

580 people

Shared Repositories

479
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abramov-alexMember

Work History

March 2026

2 Commits • 2 Features

Mar 1, 2026

Monthly work summary for 2026-03 focused on delivering core reliability improvements and feature support in ydb-platform/ydb, targeting data integrity, restore reliability, and test stability. Key features delivered include support for dropping tables with associated sequences and incremental backup test reliability improvements. Emphasis on robust transaction handling, transaction-scoped state management, and comprehensive test coverage.

February 2026

8 Commits • 2 Features

Feb 1, 2026

February 2026 (2026-02) focused on reliability, stability, and configuration hygiene for ydb-platform/ydb. Delivered four core outcomes: improved quoter reliability, stability for copy operations when the source table is dropped, a YAML configuration fuser for simplified management, and enhanced backup workflows with operation IDs and stability safeguards. These changes reduce operational risk, improve traceability, and enable faster deployments.

January 2026

2 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary for ydb-platform/ydb: Delivered Backup Management Enhancements to improve backup reliability and recoverability. Implemented backup collections as first-class entities with updated scheme entry types, including listing/printing adaptations, and introduced a coordinated schema versioning mechanism for backup operations to ensure consistency and recoverability. No major bugs reported; focus was on reliability, data integrity, and maintainability. Impact: stronger backup semantics, easier audits, and reduced recovery risks. Technologies/skills: distributed data management, schema/versioning, commit traceability, code review excellence, and UX considerations for backup listings.

December 2025

4 Commits • 1 Features

Dec 1, 2025

December 2025 — Delivered granular index-level backup capabilities and strengthened incremental backup restoration reliability for the ydb platform, delivering tangible business value in data resilience and recoverability.

November 2025

5 Commits • 3 Features

Nov 1, 2025

For 2025-11, delivered meaningful enhancements across backups, index synchronization, test diagnostics, and seed node configuration, resulting in improved data protection reliability, better traceability, and enhanced observability for configuration sources. The work emphasizes business value through safer backups, clearer failure diagnostics, and more robust seed-node management.

October 2025

5 Commits • 3 Features

Oct 1, 2025

October 2025 focused on strengthening backup reliability, introducing configuration governance, and refining backup collection behavior in ydb-platform/ydb. Deliverables reduced crash surfaces, improved restore safety, and provided explicit controls for backup indexing and reserved names, enabling safer automated backups across environments.

September 2025

5 Commits • 1 Features

Sep 1, 2025

September 2025 performance summary for ydb-platform/ydb. Deliverables focused on incremental backup enhancements with CDC support and metadata simplifications, plus a security/admin ACL fix. Key outcomes: improved backup reliability, simpler backup metadata, and enhanced admin capabilities, enabling easier data protection and governance. Technologies demonstrated include CDC integration, incremental backup refactoring, metadata consolidation, and ACL configuration.

August 2025

3 Commits • 1 Features

Aug 1, 2025

August 2025: Implemented end-to-end Restore Operations Lifecycle Management in SchemeShard with persistent long-running restore support, complemented by dedicated RPC handlers, data structures, and lifecycle controls (start, cancel, retrieve, list) that persist across restarts and include finalization steps for incremental restores. Added support for long-running restore operations via new RPCs and finalized incremental restore flow. Fixed a path resolution bug for DROP BACKUP COLLECTION across database-like names and non-existent collections, accompanied by comprehensive unit tests validating multiple scenarios. These changes improve disaster-recovery reliability, reduce manual intervention, and enhance testing coverage across restore and backup workflows.

July 2025

7 Commits • 3 Features

Jul 1, 2025

July 2025 – ydb-platform/ydb: Delivered core enhancements to restore and CDC workflows, improving reliability, maintainability, and operational safety. Incremental Restore Improvements in SchemeShard consolidate restart-aware restore operations, multi-restore lifecycle, sequential processing, and restart robustness. Bulk Drop of CDC Streams in Backups enables cascading, single-operation drops across tables and topics within a backup collection, improving cleanup consistency. CDC Incremental Backups with NewImage refactors CDC incremental backups to use NewImage (plus enhanced tests and a shop demo), reducing risk and aligning with the latest image-based plumbing. Overall, these changes reduce restore downtime risk, improve backup hygiene, and strengthen end-to-end data lineage in CDC pipelines.

June 2025

7 Commits • 2 Features

Jun 1, 2025

June 2025 monthly summary for ydb-platform/ydb focusing on reliability, incremental backup capabilities, and maintainability. Delivered resilience enhancements for configuration requests and expanded incremental backup/restore support in SchemeShard. These efforts improve data availability, reduce retry-related downtime, and streamline complex backup workflows for large-scale deployments.

Activity

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Quality Metrics

Correctness92.0%
Maintainability83.8%
Architecture85.8%
Performance78.6%
AI Usage24.6%

Skills & Technologies

Programming Languages

C++ProtoPythonYAMLprotobuf

Technical Skills

API designAccess ControlBackend DevelopmentBackupBackup and RestoreC++C++ DevelopmentC++ developmentC++ programmingCDCChange Data Capture (CDC)Code OrganizationConfiguration ManagementData SerializationDatabase

Repositories Contributed To

1 repo

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

ydb-platform/ydb

Jun 2025 Mar 2026
10 Months active

Languages Used

C++ProtoPythonprotobufYAML

Technical Skills

Backend DevelopmentBackup and RestoreC++C++ DevelopmentCode OrganizationConfiguration Management