VKCOM/statshouse
Dec 2024 – Feb 2026
13 Months active
Languages Used
GoShellTLMakefileMarkdownYAMLJSONTypeScript
Technical Skills
Backend DevelopmentBuild SystemBuild SystemsCode CleanupCode GenerationCode Refactoring
Grigory Buteyko
PROFILE
Grigory Buteyko
Over thirteen months, Hristiyan Rissanov engineered core backend systems for VKCOM/statshouse, focusing on scalable telemetry ingestion, robust data modeling, and secure API development. He refactored sharding and tagging architectures, modernized access control, and improved observability by enhancing metrics instrumentation and error reporting. Leveraging Go, TypeScript, and Protocol Buffers, Hristiyan optimized data serialization, storage, and transport, introducing features like long-polling configuration, chunked journal storage, and unified metric querying. His work included rigorous code cleanup, security hardening, and forward-compatible module upgrades, resulting in a maintainable, high-performance codebase that improved reliability, reduced operational risk, and accelerated feature delivery for VKCOM/statshouse.
Overall Statistics
Feature vs Bugs
74%Features
Repository Contributions
228Total
Bugs
34
Commits
228
Features
98
Lines of code
82,769
Activity Months13
Your Network
16 peopleShared Repositories
16
Work History
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for VKCOM/statshouse: Delivered a focused enhancement to the host metrics subsystem. Key feature delivered: Max Count Host Metric Enhancement, including renaming the function max_count_host for clarity, updating its metric description for accuracy, and integrating the metric into all relevant query selectors to improve the metric querying system functionality. This work is anchored by commit f1b71c7b23a9a21c5c79f82dcb09a57f0217e0b6 (rename max_count_host fn, add to all metric kind (#2157)).
1 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for VKCOM/statshouse: Delivered a focused enhancement to the host metrics subsystem. Key feature delivered: Max Count Host Metric Enhancement, including renaming the function max_count_host for clarity, updating its metric description for accuracy, and integrating the metric into all relevant query selectors to improve the metric querying system functionality. This work is anchored by commit f1b71c7b23a9a21c5c79f82dcb09a57f0217e0b6 (rename max_count_host fn, add to all metric kind (#2157)).
February 2026
January 2026
1 Commits
Jan 1, 2026January 2026 monthly summary for VKCOM/statshouse. Delivered a targeted security fix to the API by disabling serving of static directories, reducing exposure of static content and strengthening content delivery controls. This effort improves security posture with a clear, auditable change tied to a single commit.
January 2026
1 Commits
Jan 1, 2026January 2026 monthly summary for VKCOM/statshouse. Delivered a targeted security fix to the API by disabling serving of static directories, reducing exposure of static content and strengthening content delivery controls. This effort improves security posture with a clear, auditable change tied to a single commit.
December 2025
27 Commits • 10 Features
Dec 1, 2025Month: 2025-12 — VKCOM/statshouse Overview: Delivered a focused set of feature refinements, stability improvements, and infrastructure cleanups that increase reliability, performance, and forward-compatibility. The work emphasizes business value through more robust tag processing, faster API responses, and reduced maintenance overhead, while expanding TL2 capabilities and modernizing the module base. Key accomplishments include: - Robust tag handling: Refactor TagUnionBytes and align agent tag alias with existing tag 47, improving cross-agent consistency and reducing edge-case failures. (Commits: 1dc9728..., 28fe117...) - API performance and reliability: Implemented API embedding static to speed up responses and stabilize API surfaces. (Commit: 414a98d9...) - TL2 generation and API support: Established TL2 baseline generation and added API support including getMapping; introduced TL2Tag workaround to address fuzz findings. (Commits: 3b9e21f4..., 9b6f3ccd..., adc56aa...) - VKGO integration and metrics cleanup: Updated VKGO import path and removed external RPC metrics from the aggregator to simplify instrumentation and improve accuracy. (Commit: 0abe5c41...) - Go 1.24 compatibility work: Progress toward Go 1.24 compatibility with related refactors and fixes to maintain forward-compatibility. (Commits: 885f418..., 427e8a...) Major bugs fixed: - Validate stop before using it to prevent unsafe operations and unexpected panics. (Commit: 58fcdae8...) - YAML generation fixed to ensure correct configuration generation. (Commit: 911f8afd...) - TL2 mapping fixes and TL2Tag workaround to stabilize TL2 integrations after fuzzer findings. (Commits: 155be2e3..., a76e709a..., 1d1a4c25...) Overall impact and accomplishments: - Accelerated product readiness with safer tag processing, faster API responses, and expanded TL2 capabilities, enabling broader use of statshouse features and simplifying future enhancements. - Reduced maintenance burden through module updates, cleanup of caches/trash, and removal of legacy tooling, while maintaining Go 1.24 forward-compatibility. Technologies/skills demonstrated: - Go (Go 1.24), module management and tlgen tooling - TL language concepts and TL2 API integration - API design and performance optimization (static embedding) - Codebase cleanup and dependency modernization - Test and fuzz-driven debugging (TL2-related work and TL2Tag workaround)
27 Commits • 10 Features
Dec 1, 2025Month: 2025-12 — VKCOM/statshouse Overview: Delivered a focused set of feature refinements, stability improvements, and infrastructure cleanups that increase reliability, performance, and forward-compatibility. The work emphasizes business value through more robust tag processing, faster API responses, and reduced maintenance overhead, while expanding TL2 capabilities and modernizing the module base. Key accomplishments include: - Robust tag handling: Refactor TagUnionBytes and align agent tag alias with existing tag 47, improving cross-agent consistency and reducing edge-case failures. (Commits: 1dc9728..., 28fe117...) - API performance and reliability: Implemented API embedding static to speed up responses and stabilize API surfaces. (Commit: 414a98d9...) - TL2 generation and API support: Established TL2 baseline generation and added API support including getMapping; introduced TL2Tag workaround to address fuzz findings. (Commits: 3b9e21f4..., 9b6f3ccd..., adc56aa...) - VKGO integration and metrics cleanup: Updated VKGO import path and removed external RPC metrics from the aggregator to simplify instrumentation and improve accuracy. (Commit: 0abe5c41...) - Go 1.24 compatibility work: Progress toward Go 1.24 compatibility with related refactors and fixes to maintain forward-compatibility. (Commits: 885f418..., 427e8a...) Major bugs fixed: - Validate stop before using it to prevent unsafe operations and unexpected panics. (Commit: 58fcdae8...) - YAML generation fixed to ensure correct configuration generation. (Commit: 911f8afd...) - TL2 mapping fixes and TL2Tag workaround to stabilize TL2 integrations after fuzzer findings. (Commits: 155be2e3..., a76e709a..., 1d1a4c25...) Overall impact and accomplishments: - Accelerated product readiness with safer tag processing, faster API responses, and expanded TL2 capabilities, enabling broader use of statshouse features and simplifying future enhancements. - Reduced maintenance burden through module updates, cleanup of caches/trash, and removal of legacy tooling, while maintaining Go 1.24 forward-compatibility. Technologies/skills demonstrated: - Go (Go 1.24), module management and tlgen tooling - TL language concepts and TL2 API integration - API design and performance optimization (static embedding) - Codebase cleanup and dependency modernization - Test and fuzz-driven debugging (TL2-related work and TL2Tag workaround)
December 2025
November 2025
18 Commits • 5 Features
Nov 1, 2025In 2025-11, the VKCOM/statshouse work focused on reliability, data integrity, and performance across the ingestion, storage, and delivery pipeline. Key improvements include long-polling and RPC reliability enhancements, configurable historic data window with timestamp clamping, data storage and aggregation performance/memory efficiency refinements, observability and transport reliability upgrades, and internal tooling cleanups to boost maintainability. These changes improve data freshness, throughput, and operational visibility while reducing memory pressure and configuration risk, enabling faster, more reliable decision-making for downstream systems and users.
November 2025
18 Commits • 5 Features
Nov 1, 2025In 2025-11, the VKCOM/statshouse work focused on reliability, data integrity, and performance across the ingestion, storage, and delivery pipeline. Key improvements include long-polling and RPC reliability enhancements, configurable historic data window with timestamp clamping, data storage and aggregation performance/memory efficiency refinements, observability and transport reliability upgrades, and internal tooling cleanups to boost maintainability. These changes improve data freshness, throughput, and operational visibility while reducing memory pressure and configuration risk, enabling faster, more reliable decision-making for downstream systems and users.
October 2025
19 Commits • 3 Features
Oct 1, 2025October 2025 monthly summary for VKCOM/statshouse: Delivered major architectural and quality improvements across sharding, ingestion/tagging, and observability, driving reliability, scalability, and data clarity. Key outcomes include unified shard strategy, centralized tag mapping, and improved cardinality accuracy and reporting, supported by default sampling and XXHash-based bootstrap reliability.
19 Commits • 3 Features
Oct 1, 2025October 2025 monthly summary for VKCOM/statshouse: Delivered major architectural and quality improvements across sharding, ingestion/tagging, and observability, driving reliability, scalability, and data clarity. Key outcomes include unified shard strategy, centralized tag mapping, and improved cardinality accuracy and reporting, supported by default sampling and XXHash-based bootstrap reliability.
October 2025
September 2025
27 Commits • 6 Features
Sep 1, 2025September 2025 monthly summary for VKCOM/statshouse: Delivered key feature enhancements, security hardening, and codebase cleanup, driving improved observability, reliability, and maintainability. Significant progress in metrics tooling, agent keepalive protocol, and legacy removal, complemented by documentation updates and linting improvements. These efforts reduce technical debt and strengthen the platform for faster tool integrations and future iterations.
September 2025
27 Commits • 6 Features
Sep 1, 2025September 2025 monthly summary for VKCOM/statshouse: Delivered key feature enhancements, security hardening, and codebase cleanup, driving improved observability, reliability, and maintainability. Significant progress in metrics tooling, agent keepalive protocol, and legacy removal, complemented by documentation updates and linting improvements. These efforts reduce technical debt and strengthen the platform for faster tool integrations and future iterations.
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025: Delivered Access Control Hardening in VKCOM/statshouse, refactoring access control logic to remove insecureMode and rely on bitAdmin for administrative checks. The change streamlines access checks, strengthens governance over sensitive operations, and improves error handling for empty access tokens. Adjustments to user identifier handling in insecure mode were included to maintain compatibility during the transition. These changes reduce the risk of privilege escalation and lay groundwork for further hardening.
1 Commits • 1 Features
Aug 1, 2025August 2025: Delivered Access Control Hardening in VKCOM/statshouse, refactoring access control logic to remove insecureMode and rely on bitAdmin for administrative checks. The change streamlines access checks, strengthens governance over sensitive operations, and improves error handling for empty access tokens. Adjustments to user identifier handling in insecure mode were included to maintain compatibility during the transition. These changes reduce the risk of privilege escalation and lay groundwork for further hardening.
August 2025
July 2025
2 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for VKCOM/statshouse. Delivered RPC Client Reliability and Metrics Handling Improvement: removed legacy code, simplified metrics handling, and introduced a configurable timeout to prevent indefinite waits. Updated agent debug scripts for compatibility and refactored the metrics test mocks to simplify testing. Notable commits include 7fad7d18852aa95801c1ff7db4eee99ab46ca2a8 (fix to rpc client waiting forever without a reply. remove legacy code) and 2f9080bfd4c0cb4f23f1427f574b5ab60ba8d0fc (tiny fix).
July 2025
2 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for VKCOM/statshouse. Delivered RPC Client Reliability and Metrics Handling Improvement: removed legacy code, simplified metrics handling, and introduced a configurable timeout to prevent indefinite waits. Updated agent debug scripts for compatibility and refactored the metrics test mocks to simplify testing. Notable commits include 7fad7d18852aa95801c1ff7db4eee99ab46ca2a8 (fix to rpc client waiting forever without a reply. remove legacy code) and 2f9080bfd4c0cb4f23f1427f574b5ab60ba8d0fc (tiny fix).
May 2025
1 Commits • 1 Features
May 1, 2025Monthly work summary for VKCOM/statshouse - May 2025: Focused on improving HTTP-based ingestion experience and ensuring consistency with UDP event formats. Delivered clear guidance for endpoint usage and onboarding improvements, setting the stage for broader HTTP adoption.
1 Commits • 1 Features
May 1, 2025Monthly work summary for VKCOM/statshouse - May 2025: Focused on improving HTTP-based ingestion experience and ensuring consistency with UDP event formats. Delivered clear guidance for endpoint usage and onboarding improvements, setting the stage for broader HTTP adoption.
May 2025
March 2025
2 Commits • 2 Features
Mar 1, 2025March 2025 - VKCOM/statshouse: Delivered observability improvements and connection optimization to reduce overhead and improve reliability. Implemented error text capture as a string metric via AddValueCounterString for the Aggregator, and optimized agent connection management to avoid redundant connections to shard 1, resulting in lower resource usage and faster incident diagnosis.
March 2025
2 Commits • 2 Features
Mar 1, 2025March 2025 - VKCOM/statshouse: Delivered observability improvements and connection optimization to reduce overhead and improve reliability. Implemented error text capture as a string metric via AddValueCounterString for the Aggregator, and optimized agent connection management to avoid redundant connections to shard 1, resulting in lower resource usage and faster incident diagnosis.
February 2025
59 Commits • 30 Features
Feb 1, 2025February 2025 (2025-02) performance and delivery summary for VKCOM/statshouse. This month focused on feature completeness, reliability, and architectural refinements to support scalable telemetry processing and faster config delivery. Key features delivered include 64-bit support for raw tags and values in the agent, long-polling for configuration updates, and enhanced compact journals with explicit version requirements and checks. Architectural improvements include decoupling the data model from ClickHouse and a broader push to optimize aggregator performance with fast, compact journals. These changes collectively improve throughput, storage efficiency, and system robustness, while reducing operational risk.
59 Commits • 30 Features
Feb 1, 2025February 2025 (2025-02) performance and delivery summary for VKCOM/statshouse. This month focused on feature completeness, reliability, and architectural refinements to support scalable telemetry processing and faster config delivery. Key features delivered include 64-bit support for raw tags and values in the agent, long-polling for configuration updates, and enhanced compact journals with explicit version requirements and checks. Architectural improvements include decoupling the data model from ClickHouse and a broader push to optimize aggregator performance with fast, compact journals. These changes collectively improve throughput, storage efficiency, and system robustness, while reducing operational risk.
February 2025
January 2025
57 Commits • 34 Features
Jan 1, 2025January 2025 (VKCOM/statshouse) delivered stability and performance improvements with a focus on reliable data-paths, memory footprint reduction, and CI/CD reliability. Key work included major refactors, new mappings conveyor, versioning improvements, hashing algorithm upgrade, journal/storage architecture enhancements, and targeted bug fixes and cleanup.
January 2025
57 Commits • 34 Features
Jan 1, 2025January 2025 (VKCOM/statshouse) delivered stability and performance improvements with a focus on reliable data-paths, memory footprint reduction, and CI/CD reliability. Key work included major refactors, new mappings conveyor, versioning improvements, hashing algorithm upgrade, journal/storage architecture enhancements, and targeted bug fixes and cleanup.
December 2024
13 Commits • 4 Features
Dec 1, 2024December 2024 performance for VKCOM/statshouse focused on reliability, observability, and developer productivity enhancements across the StatShouse Aggregator and associated ingestion tooling. The work delivered stronger operational stability, improved data pipeline trust, and faster debugging and iteration cycles, enabling more reliable data processing and easier maintenance.
13 Commits • 4 Features
Dec 1, 2024December 2024 performance for VKCOM/statshouse focused on reliability, observability, and developer productivity enhancements across the StatShouse Aggregator and associated ingestion tooling. The work delivered stronger operational stability, improved data pipeline trust, and faster debugging and iteration cycles, enabling more reliable data processing and easier maintenance.
December 2024
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Quality Metrics
Correctness88.4%
Maintainability86.2%
Architecture84.0%
Performance82.4%
AI Usage22.6%
Skills & Technologies
Programming Languages
GoJSONMakefileMarkdownSQLShellTLTypeScriptYAML
Technical Skills
API DesignAPI DevelopmentAPI SecurityAPI designAPI developmentAccess ControlAgent ConfigurationAgent DevelopmentAlgorithm OptimizationArgument ParsingBackend DevelopmentBit ManipulationBuild SystemBuild SystemsBuild Tools
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