getsentry/snuba
Nov 2024 – Feb 2026
16 Months active
Languages Used
PythonYAMLRustBashJSONNETJSONNetJsonnetMakefile
Technical Skills
Backend DevelopmentDatabase OptimizationDevOpsKubernetesLoggingObservability
Oliver Newland
PROFILE
Oliver Newland
Oliver Newland engineered robust backend features and data management solutions for the getsentry/snuba repository, focusing on reliability, observability, and operational efficiency. He delivered end-to-end API enhancements, optimized ClickHouse query performance, and modernized deployment pipelines using Python and Rust. His work included implementing granular deletion controls, partitioned lightweight deletes, and health-check isolation to improve data governance and system resilience. Oliver applied advanced configuration management, CI/CD automation, and logging improvements to streamline workflows and reduce maintenance overhead. His technical depth is evident in the careful integration of batch processing, RPC design, and database optimization, resulting in safer, more scalable infrastructure.
Overall Statistics
Feature vs Bugs
81%Features
Repository Contributions
62Total
Bugs
6
Commits
62
Features
26
Lines of code
10,998
Activity Months16
Your Network
189 peopleShared Repositories
45
Work History
February 2026
9 Commits • 3 Features
Feb 1, 2026February 2026 (2026-02) for getsentry/snuba focused on stabilizing and accelerating lightweight and low-priority delete workloads while increasing configurability and observability. Delivered initial support for low-priority deletes by creating dedicated ClickHouse workloads and tuning max_threads, with runtime configuration respected to prevent production queries from being degraded. Introduced partitioned lightweight deletes groundwork by adding a partition_column to DeletionSettings and enabling per-partition mutation splitting readiness; added Redis-based tracking for deduplication and built the foundation for runtime-config controlled switching. Implemented backpressure and batching improvements for lightweight deletions, including a --no-batch mode and PartMutation metric, plus a new max_parts_mutating_for_delete config to cap concurrent work. Addressed critical bugs to align behavior with runtime config and storage topology: max_ongoing_mutations_for_delete is now honored via runtime config, system.parts is queried on storage nodes for partition dates, and Redis client initialization and partition-split fallback logic were improved. These changes reduce delete-induced latency, prevent CPU spikes under heavy deletes, and provide safer, tunable processing with better observability across the deletion pipeline.
9 Commits • 3 Features
Feb 1, 2026February 2026 (2026-02) for getsentry/snuba focused on stabilizing and accelerating lightweight and low-priority delete workloads while increasing configurability and observability. Delivered initial support for low-priority deletes by creating dedicated ClickHouse workloads and tuning max_threads, with runtime configuration respected to prevent production queries from being degraded. Introduced partitioned lightweight deletes groundwork by adding a partition_column to DeletionSettings and enabling per-partition mutation splitting readiness; added Redis-based tracking for deduplication and built the foundation for runtime-config controlled switching. Implemented backpressure and batching improvements for lightweight deletions, including a --no-batch mode and PartMutation metric, plus a new max_parts_mutating_for_delete config to cap concurrent work. Addressed critical bugs to align behavior with runtime config and storage topology: max_ongoing_mutations_for_delete is now honored via runtime config, system.parts is queried on storage nodes for partition dates, and Redis client initialization and partition-split fallback logic were improved. These changes reduce delete-induced latency, prevent CPU spikes under heavy deletes, and provide safer, tunable processing with better observability across the deletion pipeline.
February 2026
January 2026
8 Commits • 3 Features
Jan 1, 2026Month 2026-01: Snuba delivered stabilization and performance improvements across deployment, data path reliability, and admin tooling. Key outcomes include GoCD deployment pipeline refinements, ClickHouse health-check and mutation-load optimizations, and enhanced admin tooling and query validation capabilities, improving deployment resilience, API stability under load, and governance observability.
January 2026
8 Commits • 3 Features
Jan 1, 2026Month 2026-01: Snuba delivered stabilization and performance improvements across deployment, data path reliability, and admin tooling. Key outcomes include GoCD deployment pipeline refinements, ClickHouse health-check and mutation-load optimizations, and enhanced admin tooling and query validation capabilities, improving deployment resilience, API stability under load, and governance observability.
December 2025
8 Commits • 4 Features
Dec 1, 2025December 2025 monthly summary for getsentry/snuba: delivered core features across observability, safety, and deployment modernization with clear business impact. Implemented item-type observability and per-item-type memory/size metrics to improve monitoring, capacity planning, and SLA accuracy. Introduced granular deletion controls via attribute-based conditions and an organization allowlist to safely test and restrict deletions in production. Modernized deployment and CI/CD by migrating to a Rust-based production path and removing outdated docker-compose files, aligning with current requirements. Included code maintainability improvements in Snuba RPC resolvers to reduce internal coupling. No explicit bug fixes were recorded; emphasis on feature delivery and reliability across the data path.
8 Commits • 4 Features
Dec 1, 2025December 2025 monthly summary for getsentry/snuba: delivered core features across observability, safety, and deployment modernization with clear business impact. Implemented item-type observability and per-item-type memory/size metrics to improve monitoring, capacity planning, and SLA accuracy. Introduced granular deletion controls via attribute-based conditions and an organization allowlist to safely test and restrict deletions in production. Modernized deployment and CI/CD by migrating to a Rust-based production path and removing outdated docker-compose files, aligning with current requirements. Included code maintainability improvements in Snuba RPC resolvers to reduce internal coupling. No explicit bug fixes were recorded; emphasis on feature delivery and reliability across the data path.
December 2025
November 2025
12 Commits • 2 Features
Nov 1, 2025November 2025 performance highlights: Delivered a major Snuba deployment overhaul and data-management enhancements in getsentry/snuba, focusing on reliability, governance, and observability. Key outcomes include splitting deployments by language (Python/Rust), refining migration checks and file-pattern filters, plus attribute-based deletions and item-type metrics to improve data governance and product analytics. These changes reduce deployment SLO breaches, improve deployment accuracy, and provide richer, action-ready telemetry.
November 2025
12 Commits • 2 Features
Nov 1, 2025November 2025 performance highlights: Delivered a major Snuba deployment overhaul and data-management enhancements in getsentry/snuba, focusing on reliability, governance, and observability. Key outcomes include splitting deployments by language (Python/Rust), refining migration checks and file-pattern filters, plus attribute-based deletions and item-type metrics to improve data governance and product analytics. These changes reduce deployment SLO breaches, improve deployment accuracy, and provide richer, action-ready telemetry.
October 2025
1 Commits
Oct 1, 2025October 2025 Summary: Implemented health check timeout isolation for the ClickHouse cluster health in getsentry/snuba to prevent a single unresponsive cluster from impacting the /health endpoint latency. Introduced a configurable timeout override for specific environments. These changes improve reliability and preserve response times during partial outages, with clear observability for health checks.
1 Commits
Oct 1, 2025October 2025 Summary: Implemented health check timeout isolation for the ClickHouse cluster health in getsentry/snuba to prevent a single unresponsive cluster from impacting the /health endpoint latency. Introduced a configurable timeout override for specific environments. These changes improve reliability and preserve response times during partial outages, with clear observability for health checks.
October 2025
September 2025
3 Commits • 2 Features
Sep 1, 2025Sep 2025 monthly summary for getsentry/snuba focusing on feature delivery and health-check enhancements. Two key contributions: a new RPC-based trace item deletion flow (PII) with staged rollout and bulk deletion support via configuration and IdentityFormatter, and enhanced health-check error reporting by attaching cluster_name to failure events to improve multi-cluster diagnostics. Overall impact: improved data privacy controls, safer data lifecycle, faster incident diagnosis, and more reliable multi-cluster operations. Technologies/skills demonstrated: RPC design, PII handling, configuration-driven features, logging/monitoring enhancements, Python/Snuba stack, health-check instrumentation.
September 2025
3 Commits • 2 Features
Sep 1, 2025Sep 2025 monthly summary for getsentry/snuba focusing on feature delivery and health-check enhancements. Two key contributions: a new RPC-based trace item deletion flow (PII) with staged rollout and bulk deletion support via configuration and IdentityFormatter, and enhanced health-check error reporting by attaching cluster_name to failure events to improve multi-cluster diagnostics. Overall impact: improved data privacy controls, safer data lifecycle, faster incident diagnosis, and more reliable multi-cluster operations. Technologies/skills demonstrated: RPC design, PII handling, configuration-driven features, logging/monitoring enhancements, Python/Snuba stack, health-check instrumentation.
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025 highlights for getsentry/snuba: Delivered BinaryFormula support in AggregationComparisonFilter, enabling filtering on aggregated metrics (e.g., failure rates). Implemented input validation and added test coverage. The work was committed with a conventional commit style (feat(eap): add BinaryFormula to AggregationComparisonFilter, #7314). This feature enhances the precision of analytics queries and supports more informed decision-making for reliability and performance monitoring. No major bugs recorded in this period. Demonstrated skills include Python engineering, validation logic, testing, and adherence to clean commit practices.
1 Commits • 1 Features
Aug 1, 2025August 2025 highlights for getsentry/snuba: Delivered BinaryFormula support in AggregationComparisonFilter, enabling filtering on aggregated metrics (e.g., failure rates). Implemented input validation and added test coverage. The work was committed with a conventional commit style (feat(eap): add BinaryFormula to AggregationComparisonFilter, #7314). This feature enhances the precision of analytics queries and supports more informed decision-making for reliability and performance monitoring. No major bugs recorded in this period. Demonstrated skills include Python engineering, validation logic, testing, and adherence to clean commit practices.
August 2025
July 2025
3 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for getsentry/snuba: Focused on reliability, security, and configuration hygiene, delivering a more developer-friendly bootstrap workflow, cleaning up unused settings, and hardening CI/CD practices. The devserver bootstrap now runs with SNUBA_NO_WORKERS and only soft-fails when Kafka is not connectable, reducing onboarding friction and speeding local development. Obsolete TOPIC_PARTITION_COUNTS setting was removed to reduce configuration clutter. CI/CD security was tightened by removing PR_OPTIONS interpolation from gh pr create, reducing risk of misconfigurations. These changes improve developer productivity, reduce operational risk, and simplify maintenance. Technologies demonstrated include Python, Kafka connectivity handling, settings initialization, and CI/CD automation.
July 2025
3 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for getsentry/snuba: Focused on reliability, security, and configuration hygiene, delivering a more developer-friendly bootstrap workflow, cleaning up unused settings, and hardening CI/CD practices. The devserver bootstrap now runs with SNUBA_NO_WORKERS and only soft-fails when Kafka is not connectable, reducing onboarding friction and speeding local development. Obsolete TOPIC_PARTITION_COUNTS setting was removed to reduce configuration clutter. CI/CD security was tightened by removing PR_OPTIONS interpolation from gh pr create, reducing risk of misconfigurations. These changes improve developer productivity, reduce operational risk, and simplify maintenance. Technologies demonstrated include Python, Kafka connectivity handling, settings initialization, and CI/CD automation.
June 2025
1 Commits
Jun 1, 2025June 2025: Reinstated hashed key columns on medium-sized clusters by reverting the prior drop, restoring dependent indexes and materialized view configurations to preserve query correctness and performance. The fix mitigates regressions observed on medium clusters and maintains original data model expectations.
1 Commits
Jun 1, 2025June 2025: Reinstated hashed key columns on medium-sized clusters by reverting the prior drop, restoring dependent indexes and materialized view configurations to preserve query correctness and performance. The fix mitigates regressions observed on medium clusters and maintains original data model expectations.
June 2025
May 2025
2 Commits • 1 Features
May 1, 2025May 2025 monthly summary focusing on key accomplishments for the getsentry/snuba repo. Delivered a data hygiene tool to manage EAP spans in Snuba/ClickHouse and improved operational visibility through logging improvements.
May 2025
2 Commits • 1 Features
May 1, 2025May 2025 monthly summary focusing on key accomplishments for the getsentry/snuba repo. Delivered a data hygiene tool to manage EAP spans in Snuba/ClickHouse and improved operational visibility through logging improvements.
April 2025
3 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary for getsentry/snuba: focused on API cleanup and data-model consolidation to reduce maintenance overhead and improve data access clarity. Key efforts included removing v1alpha and v1/legacy endpoints and consolidating EAP access to the eap_items table, laying groundwork for faster iteration and more reliable APIs.
3 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary for getsentry/snuba: focused on API cleanup and data-model consolidation to reduce maintenance overhead and improve data access clarity. Key efforts included removing v1alpha and v1/legacy endpoints and consolidating EAP access to the eap_items table, laying groundwork for faster iteration and more reliable APIs.
April 2025
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 performance summary for getsentry/snuba. Delivered end-to-end enablement of EAP Spans Subscriptions via Commit Log Integration. Focused on delivering business value through improved traceability and scalable subscriptions, with instrumentation to ensure reliability. No critical bugs reported this month.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 performance summary for getsentry/snuba. Delivered end-to-end enablement of EAP Spans Subscriptions via Commit Log Integration. Focused on delivering business value through improved traceability and scalable subscriptions, with instrumentation to ensure reliability. No critical bugs reported this month.
February 2025
4 Commits • 2 Features
Feb 1, 2025February 2025 (getsentry/snuba) delivered stability-focused features and essential data-model cleanup, emphasizing business value through more reliable ingestion and a leaner data path. Tech scope spanned Envoy-ClickHouse integration, feature flagging for tunable timeouts, and lifecycle management of metrics entities, aligning with reliability and maintainability goals. Key points: - Implemented a configurable Envoy request timeout flag for ClickHouse inserts to address production timeouts that terminated inserts and caused consumer crashes and resubmission loops, enabling safer tuning in production. - Executed lifecycle cleanup for generic_metrics_distributions_meta_tag_values: removed configuration and storage, with a later reintroduction planned due to dependency assessment, and removed the related materialized view to deprecate the data aggregation path. This reduces ongoing maintenance and clarifies data ownership. - Removed the meta_tag_values materialized view (mv) as part of the cleanup, simplifying the metrics data path and reducing unnecessary compute. Technologies/skills demonstrated: - Envoy/HTTP timeout configuration for ingestion reliability - ClickHouse integration considerations and data ingestion stability - Feature flag governance and incremental refactor discipline - Data-model lifecycle management and deprecation workflows Overall impact: Enhanced ingestion reliability, reduced operational risk from timeouts and crashes, and a cleaner, more maintainable data path with explicit deprecation of outdated metrics artifacts.
4 Commits • 2 Features
Feb 1, 2025February 2025 (getsentry/snuba) delivered stability-focused features and essential data-model cleanup, emphasizing business value through more reliable ingestion and a leaner data path. Tech scope spanned Envoy-ClickHouse integration, feature flagging for tunable timeouts, and lifecycle management of metrics entities, aligning with reliability and maintainability goals. Key points: - Implemented a configurable Envoy request timeout flag for ClickHouse inserts to address production timeouts that terminated inserts and caused consumer crashes and resubmission loops, enabling safer tuning in production. - Executed lifecycle cleanup for generic_metrics_distributions_meta_tag_values: removed configuration and storage, with a later reintroduction planned due to dependency assessment, and removed the related materialized view to deprecate the data aggregation path. This reduces ongoing maintenance and clarifies data ownership. - Removed the meta_tag_values materialized view (mv) as part of the cleanup, simplifying the metrics data path and reducing unnecessary compute. Technologies/skills demonstrated: - Envoy/HTTP timeout configuration for ingestion reliability - ClickHouse integration considerations and data ingestion stability - Feature flag governance and incremental refactor discipline - Data-model lifecycle management and deprecation workflows Overall impact: Enhanced ingestion reliability, reduced operational risk from timeouts and crashes, and a cleaner, more maintainable data path with explicit deprecation of outdated metrics artifacts.
February 2025
January 2025
3 Commits • 2 Features
Jan 1, 2025January 2025 monthly summary for getsentry/snuba: Key reliability and performance improvements in the optimize pipeline. Fixed UTC handling across tests, trimmed CI, and enabled partitioned daily optimization to support large deployments. Result: more predictable behavior, faster feedback loops, and reduced maintenance overhead.
January 2025
3 Commits • 2 Features
Jan 1, 2025January 2025 monthly summary for getsentry/snuba: Key reliability and performance improvements in the optimize pipeline. Fixed UTC handling across tests, trimmed CI, and enabled partitioned daily optimization to support large deployments. Result: more predictable behavior, faster feedback loops, and reduced maintenance overhead.
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024: Focused on performance optimization for ClickHouse FINAL queries in getsentry/snuba. Delivered a flag-based optimization that skips cross-partition merging when the replacer state is ERRORS, reducing load and improving performance on replacement-heavy tables. Implemented as a do_not_merge_across_partitions_select_final ClickHouse setting. Commit e07e08cf68ff786d959364d0228e0a0c5b930408 (perf(final): add flag to skip cross-partition merging on FINAL). This change improves query latency and resource efficiency for analytics workloads relying on FINAL results.
1 Commits • 1 Features
Dec 1, 2024December 2024: Focused on performance optimization for ClickHouse FINAL queries in getsentry/snuba. Delivered a flag-based optimization that skips cross-partition merging when the replacer state is ERRORS, reducing load and improving performance on replacement-heavy tables. Implemented as a do_not_merge_across_partitions_select_final ClickHouse setting. Commit e07e08cf68ff786d959364d0228e0a0c5b930408 (perf(final): add flag to skip cross-partition merging on FINAL). This change improves query latency and resource efficiency for analytics workloads relying on FINAL results.
December 2024
November 2024
2 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for getsentry/snuba focusing on stability, reliability, and observability. Implemented a targeted Kubernetes ConfigMaps update fix to relocate the job manifest to env/, reducing stale configurations and environmental pollution. Added partition optimization timing metric and informational log to improve observability, enabling quicker identification of performance bottlenecks and faster triage.
November 2024
2 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for getsentry/snuba focusing on stability, reliability, and observability. Implemented a targeted Kubernetes ConfigMaps update fix to relocate the job manifest to env/, reducing stale configurations and environmental pollution. Added partition optimization timing metric and informational log to improve observability, enabling quicker identification of performance bottlenecks and faster triage.
Activity
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Quality Metrics
Correctness90.4%
Maintainability86.4%
Architecture86.8%
Performance84.8%
AI Usage28.4%
Skills & Technologies
Programming Languages
BashJSONNETJSONNetJsonnetMakefilePythonRustYAMLbashjsonnet
Technical Skills
API DevelopmentAPI IntegrationAPI designAPI developmentBackend DevelopmentBatch ProcessingCI/CDCLI DevelopmentClickHouseClickhouseCode RefactoringConcurrencyConfiguration ManagementContainerizationContinuous Integration
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline