
Wanyun Su developed and maintained core backend features for the DUNE-DAQ/drunc repository over 13 months, focusing on process orchestration, observability, and Kubernetes integration. She engineered robust state machine management and centralized run information publishing, leveraging Python and YAML for configuration and system monitoring. Her work included implementing dynamic configuration, schema validation, and CI/CD pipelines, as well as enhancing error handling and logging for production reliability. By refactoring code for clarity and maintainability, Su improved deployment stability and reduced operational overhead. Her contributions addressed both feature delivery and bug resolution, demonstrating depth in distributed systems, container orchestration, and backend development.
March 2026 monthly summary for DUNE-DAQ/drunc: Delivered nested configuration support and implemented reliability fixes in Kubernetes process management, improving configurability, deployment stability, and container port assignment reliability. Key outcomes include enabling a new configuration ID parameter, fixing USER env var handling, correcting local connection server logic, and aligning shutdown sequencing post-merge.
March 2026 monthly summary for DUNE-DAQ/drunc: Delivered nested configuration support and implemented reliability fixes in Kubernetes process management, improving configurability, deployment stability, and container port assignment reliability. Key outcomes include enabling a new configuration ID parameter, fixing USER env var handling, correcting local connection server logic, and aligning shutdown sequencing post-merge.
February 2026 for DUNE-DAQ/drunc — Focused on stabilizing and extending Kubernetes Process Manager (KPM) to improve process orchestration, data handling, and developer documentation. Highlights include core configuration consolidation, improved pod role detection using tree labels, robust termination sequencing, reliable data path/mount handling, and user environment propagation fixes, complemented by expanded documentation.
February 2026 for DUNE-DAQ/drunc — Focused on stabilizing and extending Kubernetes Process Manager (KPM) to improve process orchestration, data handling, and developer documentation. Highlights include core configuration consolidation, improved pod role detection using tree labels, robust termination sequencing, reliable data path/mount handling, and user environment propagation fixes, complemented by expanded documentation.
November 2025 performance highlights: Delivered targeted robustness and observability improvements across DUNE-DAQ repos, focusing on runtime isolation, Kubernetes integration, graceful shutdown, gRPC stability, and enhanced testing. These changes reduce production risk, improve portability across environments, and accelerate triage.
November 2025 performance highlights: Delivered targeted robustness and observability improvements across DUNE-DAQ repos, focusing on runtime isolation, Kubernetes integration, graceful shutdown, gRPC stability, and enhanced testing. These changes reduce production risk, improve portability across environments, and accelerate triage.
October 2025: Focused on hardening the Kubernetes Process Manager in DUNE-DAQ/drunc to improve reliability, operability, and observability in containerized environments. Delivered configuration and networking modernization, enhanced error handling and logging, thread-safe host management, and graceful shutdown across C++ and Python components. These changes reduce runtime failures, simplify deployments, and improve diagnostics, enabling smoother Kubernetes-based operations and faster incident resolution.
October 2025: Focused on hardening the Kubernetes Process Manager in DUNE-DAQ/drunc to improve reliability, operability, and observability in containerized environments. Delivered configuration and networking modernization, enhanced error handling and logging, thread-safe host management, and graceful shutdown across C++ and Python components. These changes reduce runtime failures, simplify deployments, and improve diagnostics, enabling smoother Kubernetes-based operations and faster incident resolution.
September 2025 monthly summary for DUNE-DAQ/drunc: Delivered key improvements to Process Manager configuration, Kubernetes Process Manager enhancements, and CI/testing infra, driving greater reliability and business value for deployments and testing workflows.
September 2025 monthly summary for DUNE-DAQ/drunc: Delivered key improvements to Process Manager configuration, Kubernetes Process Manager enhancements, and CI/testing infra, driving greater reliability and business value for deployments and testing workflows.
In August 2025, the drunc project advanced CI/CD reliability and code quality, focusing on automated nightly build validation in Kubernetes and maintainability improvements. Delivered structured Kubernetes-based nightly build image testing, expanded configuration support for local and CERN OpMon, and performed targeted cleanup to reduce maintenance overhead. These changes improve build reliability, accelerate onboarding, and streamline maintenance for the DUNE-DAQ/drunc repository.
In August 2025, the drunc project advanced CI/CD reliability and code quality, focusing on automated nightly build validation in Kubernetes and maintainability improvements. Delivered structured Kubernetes-based nightly build image testing, expanded configuration support for local and CERN OpMon, and performed targeted cleanup to reduce maintenance overhead. These changes improve build reliability, accelerate onboarding, and streamline maintenance for the DUNE-DAQ/drunc repository.
July 2025 performance summary for DUNE-DAQ/drunc focused on delivering robust FSM sequence management and Kubernetes-backed process management, with significant gains in reliability, usability, and observability. Work advanced shell/UI integration, improved sequence parsing/initialization, and hardened the Kubernetes Process Manager with boot-time pod handling, simplified channel configuration, and configurable storage paths. These changes reduce operator effort, improve automation reliability, and enable clearer visibility into system state for proactive issue resolution.
July 2025 performance summary for DUNE-DAQ/drunc focused on delivering robust FSM sequence management and Kubernetes-backed process management, with significant gains in reliability, usability, and observability. Work advanced shell/UI integration, improved sequence parsing/initialization, and hardened the Kubernetes Process Manager with boot-time pod handling, simplified channel configuration, and configurable storage paths. These changes reduce operator effort, improve automation reliability, and enable clearer visibility into system state for proactive issue resolution.
June 2025 monthly summary for DUNE-DAQ/drunc: Focused on delivering observability improvements and targeted runtime fixes to improve the reliability and clarity of state-machine metrics and logging, enabling faster debugging and better decision-making for production deployments.
June 2025 monthly summary for DUNE-DAQ/drunc: Focused on delivering observability improvements and targeted runtime fixes to improve the reliability and clarity of state-machine metrics and logging, enabling faster debugging and better decision-making for production deployments.
May 2025 monthly summary for DUNE-DAQ/drunc focusing on delivering business value through centralized run information publishing, improved monitoring configuration, and code quality enhancements. Key outcomes include a new RunInfo-based centralized publishing and enhanced controller status output, improved OpMon configuration handling with file-based type support and interval management, and notable fixes and refactors that improve reliability and maintainability across the module.
May 2025 monthly summary for DUNE-DAQ/drunc focusing on delivering business value through centralized run information publishing, improved monitoring configuration, and code quality enhancements. Key outcomes include a new RunInfo-based centralized publishing and enhanced controller status output, improved OpMon configuration handling with file-based type support and interval management, and notable fixes and refactors that improve reliability and maintainability across the module.
April 2025 monthly summary for DUNE-DAQ/drunc emphasizing business value from feature delivery, bug fixes, and code quality improvements.
April 2025 monthly summary for DUNE-DAQ/drunc emphasizing business value from feature delivery, bug fixes, and code quality improvements.
March 2025 (DUNE-DAQ/drunc) delivered two OpMon-driven enhancements and performance instrumentation that improve observability, reliability, and deployment flexibility. The changes emphasize business value through actionable metrics, robust lifecycle management, and cross-environment compatibility.
March 2025 (DUNE-DAQ/drunc) delivered two OpMon-driven enhancements and performance instrumentation that improve observability, reliability, and deployment flexibility. The changes emphasize business value through actionable metrics, robust lifecycle management, and cross-environment compatibility.
February 2025: DUNE-DAQ/drunc delivered significant enhancements to FSM monitoring via OpMon integration, enabling dynamic configuration and improved observability while reducing coupling to legacy opmon interfaces. Key work included implementing OpMon-based FSM monitoring with a publisher interface, reading OpMon URI from config, and supporting dynamic bootstrap servers and topics. Additionally, run-number actions were updated to use context session and application name for better traceability. A dedicated code cleanup pass resolved merge conflicts and refined imports/usages to ensure clean integration and maintainability.
February 2025: DUNE-DAQ/drunc delivered significant enhancements to FSM monitoring via OpMon integration, enabling dynamic configuration and improved observability while reducing coupling to legacy opmon interfaces. Key work included implementing OpMon-based FSM monitoring with a publisher interface, reading OpMon URI from config, and supporting dynamic bootstrap servers and topics. Additionally, run-number actions were updated to use context session and application name for better traceability. A dedicated code cleanup pass resolved merge conflicts and refined imports/usages to ensure clean integration and maintainability.
January 2025: Implemented Enhanced Run Information Publishing and Monitoring (TestInfo) in DUNE-DAQ/drunc, expanding run-level telemetry and simplifying the publish path. This delivers richer observability for operators and downstream systems, improves fault diagnostics, and reduces maintenance overhead through code refactoring and FSM context propagation.
January 2025: Implemented Enhanced Run Information Publishing and Monitoring (TestInfo) in DUNE-DAQ/drunc, expanding run-level telemetry and simplifying the publish path. This delivers richer observability for operators and downstream systems, improves fault diagnostics, and reduces maintenance overhead through code refactoring and FSM context propagation.

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