OpenNMS/opennms
Dec 2024 – Oct 2025
11 Months active
Languages Used
propertiesadocShellJSPJavaScriptJavaXMLAsciiDoc
Technical Skills
Configuration ManagementSystem AdministrationSystem MonitoringDocumentationConfigurationDatabase Monitoring
Dino
PROFILE
Dino
Over eleven months, David Yancey contributed to the OpenNMS/opennms repository by building and refining features that improved monitoring, observability, and documentation. He developed backend enhancements such as Oracle JDBC data collection and timeseries data tagging, using Java and SQL to increase data reliability and capacity planning accuracy. David also addressed system stability by fixing IP address discovery logic and refining Prometheus metrics handling. His work included extensive documentation updates, clarifying deployment, configuration, and security practices, and streamlining onboarding. Through a combination of API development, configuration management, and shell scripting, he delivered maintainable solutions that reduced operational friction and support overhead.
Overall Statistics
Feature vs Bugs
68%Features
Repository Contributions
33Total
Bugs
7
Commits
33
Features
15
Lines of code
22,461
Activity Months11
Your Network
27 people
Work History
October 2025
4 Commits • 2 Features
Oct 1, 2025October 2025 highlights OpenNMS/opennms improvements in observability, reliability, and monitoring accuracy. Delivered API logging enhancements for better traceability, expanded Minion tuning guidance, and safety improvements for installation scripting, along with a guard to prevent empty Prometheus labels. These efforts reduce noise, improve operational efficiency, and strengthen data quality for capacity planning and incident response.
4 Commits • 2 Features
Oct 1, 2025October 2025 highlights OpenNMS/opennms improvements in observability, reliability, and monitoring accuracy. Delivered API logging enhancements for better traceability, expanded Minion tuning guidance, and safety improvements for installation scripting, along with a guard to prevent empty Prometheus labels. These efforts reduce noise, improve operational efficiency, and strengthen data quality for capacity planning and incident response.
October 2025
September 2025
1 Commits • 1 Features
Sep 1, 2025Sept 2025 (OpenNMS/opennms): Documentation-only deprecation of the Situation Feedback feature. Removed all references in user docs, updated navigation to reflect non-support status, and linked changes to commit adbea24790cbed1bcc4961baba2005b8302cd7fe (Remove references to situation feedback, #7945). No code logic modifications were required, preserving stability while aligning with the product roadmap and reducing long-term maintenance.
September 2025
1 Commits • 1 Features
Sep 1, 2025Sept 2025 (OpenNMS/opennms): Documentation-only deprecation of the Situation Feedback feature. Removed all references in user docs, updated navigation to reflect non-support status, and linked changes to commit adbea24790cbed1bcc4961baba2005b8302cd7fe (Remove references to situation feedback, #7945). No code logic modifications were required, preserving stability while aligning with the product roadmap and reducing long-term maintenance.
August 2025
8 Commits • 2 Features
Aug 1, 2025OpenNMS monthly summary for 2025-08: Focused on documentation quality, data model improvements for timeseries, and cleanup of deprecated integrations, complemented by test stabilization. Delivered comprehensive docs work, enriched metrics with category tagging, and removal of legacy components, driving developer productivity and system reliability.
8 Commits • 2 Features
Aug 1, 2025OpenNMS monthly summary for 2025-08: Focused on documentation quality, data model improvements for timeseries, and cleanup of deprecated integrations, complemented by test stabilization. Delivered comprehensive docs work, enriched metrics with category tagging, and removal of legacy components, driving developer productivity and system reliability.
August 2025
July 2025
6 Commits • 1 Features
Jul 1, 2025July 2025: OpenNMS/opennms delivered focused documentation enhancements and a critical IP address discovery fix. The documentation improvements consolidated guidance across REST health endpoints, Minion JDBC installation, KSC endpoint, sFlow references, and housekeeping docs, improving user guidance and reducing support load. A bug fix improved IP address discovery accuracy by refining interface index handling and vendor-specific starting index calculations, addressing NMS-18051 and reducing misparsing of IP data. Collectively, these efforts enhanced user onboarding, operational reliability, and maintainability of the platform.
July 2025
6 Commits • 1 Features
Jul 1, 2025July 2025: OpenNMS/opennms delivered focused documentation enhancements and a critical IP address discovery fix. The documentation improvements consolidated guidance across REST health endpoints, Minion JDBC installation, KSC endpoint, sFlow references, and housekeeping docs, improving user guidance and reducing support load. A bug fix improved IP address discovery accuracy by refining interface index handling and vendor-specific starting index calculations, addressing NMS-18051 and reducing misparsing of IP data. Collectively, these efforts enhanced user onboarding, operational reliability, and maintainability of the platform.
June 2025
2 Commits • 2 Features
Jun 1, 2025June 2025 (OpenNMS/opennms) delivered two feature-driven improvements focused on alarm readability and system observability, with accompanying documentation and UI refinements. The work enhances operator clarity, enables data-driven usage reporting, and improves triage efficiency.
2 Commits • 2 Features
Jun 1, 2025June 2025 (OpenNMS/opennms) delivered two feature-driven improvements focused on alarm readability and system observability, with accompanying documentation and UI refinements. The work enhances operator clarity, enables data-driven usage reporting, and improves triage efficiency.
June 2025
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary focusing on business value and technical achievements for OpenNMS/opennms. Core emphasis on documentation quality that reduces misconfiguration, improves onboarding, and lowers support workload.
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary focusing on business value and technical achievements for OpenNMS/opennms. Core emphasis on documentation quality that reduces misconfiguration, improves onboarding, and lowers support workload.
April 2025
3 Commits • 1 Features
Apr 1, 2025April 2025 — Focused on documentation-driven improvements for OpenNMS/opennms. Delivered consolidated guidance across IcmpMonitor metrics, TFTP port configuration, and R-core installation docs, enhancing operator clarity, easing onboarding, and reducing configuration errors. The work was executed via three commits linked to Jira issues NMS-17855, NMS-17856, and NMS-17755, with particular emphasis on removing obsolete notes and tightening guidance around network and monitoring configurations. No runtime code changes were introduced this month.
3 Commits • 1 Features
Apr 1, 2025April 2025 — Focused on documentation-driven improvements for OpenNMS/opennms. Delivered consolidated guidance across IcmpMonitor metrics, TFTP port configuration, and R-core installation docs, enhancing operator clarity, easing onboarding, and reducing configuration errors. The work was executed via three commits linked to Jira issues NMS-17855, NMS-17856, and NMS-17755, with particular emphasis on removing obsolete notes and tightening guidance around network and monitoring configurations. No runtime code changes were introduced this month.
April 2025
March 2025
1 Commits
Mar 1, 2025March 2025: Stabilized Newsfeed behavior in OpenNMS/opennms by standardizing the Newsfeed URL to api/v2/newsfeed and removing the system property override. This improves reliability across environments, reduces troubleshooting effort, and simplifies future maintenance through a clearly scoped, low-risk change.
March 2025
1 Commits
Mar 1, 2025March 2025: Stabilized Newsfeed behavior in OpenNMS/opennms by standardizing the Newsfeed URL to api/v2/newsfeed and removing the system property override. This improves reliability across environments, reduces troubleshooting effort, and simplifies future maintenance through a clearly scoped, low-risk change.
February 2025
3 Commits • 3 Features
Feb 1, 2025February 2025 performance summary for OpenNMS/opennms: Focused on delivering observability enhancements and troubleshooting tooling to increase uptime and data quality. Key features delivered include: Oracle JDBC Data Collection Reports providing tablespace size, invalid objects, backup lag, and redo generation metrics to improve Oracle DB monitoring; Graph data reliability improvement by configuring page-size in the datastax-java-driver to prevent data gaps when collection or polling intervals change; OpenNMS diagnostic support_pack.sh script to collect Java, OS, package versions, database statistics, thread dumps, configuration files, and logs into a compressed archive for easier troubleshooting, with support across multiple assembly locations. These changes enable proactive capacity planning, faster MTTR, and more reliable graph analytics across the platform. Technologies demonstrated include Oracle JDBC data collection, Newts/Datastax driver configuration, shell scripting, and cross-assembly tooling.
3 Commits • 3 Features
Feb 1, 2025February 2025 performance summary for OpenNMS/opennms: Focused on delivering observability enhancements and troubleshooting tooling to increase uptime and data quality. Key features delivered include: Oracle JDBC Data Collection Reports providing tablespace size, invalid objects, backup lag, and redo generation metrics to improve Oracle DB monitoring; Graph data reliability improvement by configuring page-size in the datastax-java-driver to prevent data gaps when collection or polling intervals change; OpenNMS diagnostic support_pack.sh script to collect Java, OS, package versions, database statistics, thread dumps, configuration files, and logs into a compressed archive for easier troubleshooting, with support across multiple assembly locations. These changes enable proactive capacity planning, faster MTTR, and more reliable graph analytics across the platform. Technologies demonstrated include Oracle JDBC data collection, Newts/Datastax driver configuration, shell scripting, and cross-assembly tooling.
February 2025
January 2025
2 Commits • 2 Features
Jan 1, 2025January 2025 – Documentation improvements for deployment and configuration across OpenNMS OpenNMS/opennms: - Newts setup and verification documentation updated to guide end-to-end Newts deployment, including database properties, retention rates, Cassandra driver settings, and schema initialization/verification within OpenNMS. (Commit: 727f17bb8edd2274111ac8a04d2a75bf1043f049; NMS-16418) - Kafka configuration and system requirements documentation updated, clarifying security.protocol usage to SASL_SSL and updating OS/system requirements for newer RHEL/CentOS versions. (Commit: 20244ba18101d7cf8d970d779f6ca774b16ffec2; NMS-16940) No major code fixes this month; focus was on documentation to improve deployment accuracy, security alignment, and onboarding efficiency. Business value and impact: these docs reduce configuration drift, lower onboarding time for operators and developers, and decrease support tickets related to Newts and Kafka deployments. The updates also align with current supported platforms and security practices, contributing to more stable, auditable OpenNMS deployments. Technologies/skills demonstrated: OpenNMS stack (Newts, Cassandra integration), Kafka deployment considerations, Oracle/NoSQL-like Cassandra driver settings, Linux OS requirements (RHEL/CentOS), security protocol configuration, and documentation engineering.
January 2025
2 Commits • 2 Features
Jan 1, 2025January 2025 – Documentation improvements for deployment and configuration across OpenNMS OpenNMS/opennms: - Newts setup and verification documentation updated to guide end-to-end Newts deployment, including database properties, retention rates, Cassandra driver settings, and schema initialization/verification within OpenNMS. (Commit: 727f17bb8edd2274111ac8a04d2a75bf1043f049; NMS-16418) - Kafka configuration and system requirements documentation updated, clarifying security.protocol usage to SASL_SSL and updating OS/system requirements for newer RHEL/CentOS versions. (Commit: 20244ba18101d7cf8d970d779f6ca774b16ffec2; NMS-16940) No major code fixes this month; focus was on documentation to improve deployment accuracy, security alignment, and onboarding efficiency. Business value and impact: these docs reduce configuration drift, lower onboarding time for operators and developers, and decrease support tickets related to Newts and Kafka deployments. The updates also align with current supported platforms and security practices, contributing to more stable, auditable OpenNMS deployments. Technologies/skills demonstrated: OpenNMS stack (Newts, Cassandra integration), Kafka deployment considerations, Oracle/NoSQL-like Cassandra driver settings, Linux OS requirements (RHEL/CentOS), security protocol configuration, and documentation engineering.
December 2024
2 Commits
Dec 1, 2024December 2024 monthly summary for OpenNMS/opennms: Focused on correcting the WinRM Virtual Memory graph to ensure accurate Windows VM memory usage, with standardization of titles, removal of redundant files, and upgrade-safe configuration. This bug fix improves monitoring accuracy for capacity planning, reduces dashboard confusion, and strengthens deployment stability. Delivered through two commits addressing NMS-16953 and providing traceability. Technologies demonstrated include Windows metrics collection, monitoring graph design, configuration management, and Git-based collaboration (commits 71e94267600a9b0e64561519a7c11ab6ff3ed068 and 93a244003d00e194bf25f6d0d48f3f95e37da515).
2 Commits
Dec 1, 2024December 2024 monthly summary for OpenNMS/opennms: Focused on correcting the WinRM Virtual Memory graph to ensure accurate Windows VM memory usage, with standardization of titles, removal of redundant files, and upgrade-safe configuration. This bug fix improves monitoring accuracy for capacity planning, reduces dashboard confusion, and strengthens deployment stability. Delivered through two commits addressing NMS-16953 and providing traceability. Technologies demonstrated include Windows metrics collection, monitoring graph design, configuration management, and Git-based collaboration (commits 71e94267600a9b0e64561519a7c11ab6ff3ed068 and 93a244003d00e194bf25f6d0d48f3f95e37da515).
December 2024
Activity
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Quality Metrics
Correctness94.0%
Maintainability93.4%
Architecture89.8%
Performance90.4%
AI Usage20.0%
Skills & Technologies
Programming Languages
AsciiDocJSPJavaJavaScriptPropertiesShellXMLadocasciidocdrl
Technical Skills
API DevelopmentBackend DevelopmentCode RefactoringConfigurationConfiguration ManagementData TaggingDatabase ManagementDatabase MonitoringDeprecationDocumentationDocumentation ManagementFront End DevelopmentFrontend DevelopmentIP Address ManagementIntegration Testing
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