percona/percona-server-mongodb
Oct 2024 – Feb 2025
4 Months active
Languages Used
C++CPythonBazelJavaScriptIDL
Technical Skills
Bug FixCode RefactoringBazelBuild SystemsC++C++ Development
Sara Golemon
PROFILE
Sara Golemon
Worked on percona/percona-server-mongodb, delivering infrastructure modernization and new feature development across four months. Led the migration of build and test systems from SCons to Bazel, standardizing workflows and improving CI reliability for a large C++ codebase. Implemented proxy protocol support for Mongod and Mongos behind a feature flag, enabling safer proxy deployments and accurate connection budgeting. Addressed reliability issues in replica-set authentication tests by refining log analysis methods. The work demonstrated expertise in C++, Bazel, and CI/CD, resulting in more maintainable builds, faster feedback cycles, and a scalable foundation for ongoing cross-module integration and test optimization.
Overall Statistics
Feature vs Bugs
60%Features
Repository Contributions
17Total
Bugs
2
Commits
17
Features
3
Lines of code
281,358
Activity Months4
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Work History
February 2025
3 Commits • 1 Features
Feb 1, 2025February 2025: Delivered proxy protocol support for Mongod/Mongos behind a feature flag in percona-server-mongodb, with tests gated to run only when the flag is enabled. Implemented correct usage of proxied source addresses for max connection calculations, enabling safer operation in proxy deployments. Enabled the feature flag path across the codebase to support controlled production rollout and broader compatibility with non-OCS proxy setups.
3 Commits • 1 Features
Feb 1, 2025February 2025: Delivered proxy protocol support for Mongod/Mongos behind a feature flag in percona-server-mongodb, with tests gated to run only when the flag is enabled. Implemented correct usage of proxied source addresses for max connection calculations, enabling safer operation in proxy deployments. Enabled the feature flag path across the codebase to support controlled production rollout and broader compatibility with non-OCS proxy setups.
February 2025
December 2024
8 Commits • 1 Features
Dec 1, 20242024-12: Build system modernization and test reliability improvements for percona-server-mongodb. Key achievements include standardizing the build/test process across core modules by migrating critical targets from SCons to Bazel (fle_test; mongo db/repl; mongo client tests; C++ unit tests/benchmarks) through a series of commits (SERVER-97366, SERVER-98079, SERVER-98157, SERVER-98426, SERVER-98468, SERVER-98544), leading to more consistent builds, reduced maintenance, and faster feedback. Major bug fix: improved reliability of replica-set authentication tests by updating speculative-auth-replset.js to read logs directly via cat instead of ramlog (SERVER-98186). Overall impact: more deterministic CI, easier onboarding for contributors, and a foundation for continued cross-module optimization. Technologies/skills demonstrated: Bazel migration across a large C++ codebase, cross-module build/test orchestration, C++ unit tests/benchmarks, and log-based test analysis.
December 2024
8 Commits • 1 Features
Dec 1, 20242024-12: Build system modernization and test reliability improvements for percona-server-mongodb. Key achievements include standardizing the build/test process across core modules by migrating critical targets from SCons to Bazel (fle_test; mongo db/repl; mongo client tests; C++ unit tests/benchmarks) through a series of commits (SERVER-97366, SERVER-98079, SERVER-98157, SERVER-98426, SERVER-98468, SERVER-98544), leading to more consistent builds, reduced maintenance, and faster feedback. Major bug fix: improved reliability of replica-set authentication tests by updating speculative-auth-replset.js to read logs directly via cat instead of ramlog (SERVER-98186). Overall impact: more deterministic CI, easier onboarding for contributors, and a foundation for continued cross-module optimization. Technologies/skills demonstrated: Bazel migration across a large C++ codebase, cross-module build/test orchestration, C++ unit tests/benchmarks, and log-based test analysis.
November 2024
5 Commits • 1 Features
Nov 1, 2024Month: 2024-11 — Performance-review-ready summary for percona/percona-server-mongodb. Led a major infrastructure modernization by migrating unit tests and build configurations from SCons to Bazel across multiple modules (enterprise/security, percona-server-mongodb, crypto, db/auth, util/net, client, ftdc). Standardized the build and test processes, consolidated test configurations, and improved test execution efficiency, contributing to faster feedback and more reliable CI. Impact highlights include establishing a scalable foundation for cross-module testing, reducing maintenance overhead, and enabling smoother onboarding for new contributors. The work aligns with ongoing efforts to improve build determinism, test isolation, and overall delivery cadence.
5 Commits • 1 Features
Nov 1, 2024Month: 2024-11 — Performance-review-ready summary for percona/percona-server-mongodb. Led a major infrastructure modernization by migrating unit tests and build configurations from SCons to Bazel across multiple modules (enterprise/security, percona-server-mongodb, crypto, db/auth, util/net, client, ftdc). Standardized the build and test processes, consolidated test configurations, and improved test execution efficiency, contributing to faster feedback and more reliable CI. Impact highlights include establishing a scalable foundation for cross-module testing, reducing maintenance overhead, and enabling smoother onboarding for new contributors. The work aligns with ongoing efforts to improve build determinism, test isolation, and overall delivery cadence.
November 2024
October 2024
1 Commits
Oct 1, 20242024-10 monthly summary for percona/percona-server-mongodb: Delivered a targeted bug fix to FLEToken parsing, enabling a concrete error path for invalid PRF length and replacing placeholder log IDs with a proper identifier to improve reliability and supportability.
October 2024
1 Commits
Oct 1, 20242024-10 monthly summary for percona/percona-server-mongodb: Delivered a targeted bug fix to FLEToken parsing, enabling a concrete error path for invalid PRF length and replacing placeholder log IDs with a proper identifier to improve reliability and supportability.
Activity
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Quality Metrics
Correctness94.0%
Maintainability94.0%
Architecture92.8%
Performance77.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
BazelCC++IDLJavaScriptPython
Technical Skills
BazelBug FixBuild SystemsC++C++ DevelopmentCI/CDCode RefactoringFeature Flag ManagementJavaScriptNetwork ProgrammingProxy ProtocolPythonRefactoringSConsServer Configuration
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