OpenNMS/opennms
Dec 2024 – Feb 2026
15 Months active
Languages Used
AsciiDocJavaProtoadocpropertiesJSONGroovyXML
Technical Skills
API DevelopmentBackend DevelopmentConfiguration ManagementDocumentationJavaJava Development
Chandra Gorantla
PROFILE
Chandra Gorantla
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
74Total
Bugs
15
Commits
74
Features
31
Lines of code
160,520
Activity Months15
Your Network
27 peopleSame Organization
@opennms.com2
Work History
February 2026
3 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary focusing on key features delivered, major bugs fixed, overall impact, and technologies demonstrated. The work centers on enhanced observability and metrics instrumentation in the OpenNMS/OpenNMS repository, enabling data-driven troubleshooting and proactive monitoring for Trap processing and device-level metrics.
3 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary focusing on key features delivered, major bugs fixed, overall impact, and technologies demonstrated. The work centers on enhanced observability and metrics instrumentation in the OpenNMS/OpenNMS repository, enabling data-driven troubleshooting and proactive monitoring for Trap processing and device-level metrics.
February 2026
January 2026
8 Commits • 3 Features
Jan 1, 2026Concise monthly summary for OpenNMS/opennms (2026-01): Delivered feature enhancements, reliability improvements, and stability hardening across timeseries, Kafka topic visibility, and configuration/dependency layers. These efforts improve observability, deployment flexibility, and developer velocity, while reducing test flakiness and runtime issues.
January 2026
8 Commits • 3 Features
Jan 1, 2026Concise monthly summary for OpenNMS/opennms (2026-01): Delivered feature enhancements, reliability improvements, and stability hardening across timeseries, Kafka topic visibility, and configuration/dependency layers. These efforts improve observability, deployment flexibility, and developer velocity, while reducing test flakiness and runtime issues.
December 2025
3 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for OpenNMS/opennms: Key bug fix and documentation enhancements delivered, improving system reliability, onboarding, and operational agility. Focused on correcting HTML rendering in 3Com event descriptions and documenting OpenConfig Telemetry and the DB-backed dynamic event definitions feature, enabling runtime updates without restarts.
3 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for OpenNMS/opennms: Key bug fix and documentation enhancements delivered, improving system reliability, onboarding, and operational agility. Focused on correcting HTML rendering in 3Com event descriptions and documenting OpenConfig Telemetry and the DB-backed dynamic event definitions feature, enabling runtime updates without restarts.
December 2025
November 2025
7 Commits • 1 Features
Nov 1, 2025November 2025 performance summary for OpenNMS/opennms: Delivered a DB-backed Event Management System with REST APIs and plugin persistence, hardened CI/CD pipeline for faster, more reliable builds, and resolved a Node Discovery OSPF deadlock to improve discovery reliability. These efforts deliver measurable business value through reliable event configurations, streamlined release cycles, and improved network monitoring stability. Demonstrated deep expertise in database-backed configurations, API design, plugin architecture, and build/test automation.
November 2025
7 Commits • 1 Features
Nov 1, 2025November 2025 performance summary for OpenNMS/opennms: Delivered a DB-backed Event Management System with REST APIs and plugin persistence, hardened CI/CD pipeline for faster, more reliable builds, and resolved a Node Discovery OSPF deadlock to improve discovery reliability. These efforts deliver measurable business value through reliable event configurations, streamlined release cycles, and improved network monitoring stability. Demonstrated deep expertise in database-backed configurations, API design, plugin architecture, and build/test automation.
October 2025
8 Commits • 3 Features
Oct 1, 2025October 2025 monthly summary for OpenNMS/opennms focusing on delivering reliable configuration and performance improvements, stabilizing test suites, and streamlining startup and service management.
8 Commits • 3 Features
Oct 1, 2025October 2025 monthly summary for OpenNMS/opennms focusing on delivering reliable configuration and performance improvements, stabilizing test suites, and streamlining startup and service management.
October 2025
September 2025
3 Commits • 2 Features
Sep 1, 2025September 2025 monthly summary for OpenNMS/opennms focused on stability, interoperability, and testing capabilities. Delivered two main features with cross-cutting improvements in logging, dependency management, and OSGi validation. Business value includes reduced run-time risk, improved telemetry interoperability, and accelerated validation across deployment strategies.
September 2025
3 Commits • 2 Features
Sep 1, 2025September 2025 monthly summary for OpenNMS/opennms focused on stability, interoperability, and testing capabilities. Delivered two main features with cross-cutting improvements in logging, dependency management, and OSGi validation. Business value includes reduced run-time risk, improved telemetry interoperability, and accelerated validation across deployment strategies.
August 2025
10 Commits • 4 Features
Aug 1, 2025August 2025 — OpenNMS/opennms: Delivered stability, modernization, and upgrade-readiness enhancements that reduce startup risk, improve observability, and simplify future upgrades. Implemented SNMP4J upgrade to 2.8.15 with SLF4J logging and central Slf4jLogFactory, resolved a startup deadlock in the SNMP Poller by refactoring asynchronous handling, and hardened the UsageStatisticsReporter against broader exceptions. Modernized Spring context for compatibility with newer Spring versions, improved opennms.properties guidance to avoid direct edits and reduce upgrade conflicts, and updated release notes and horizon documentation to reflect new features.
10 Commits • 4 Features
Aug 1, 2025August 2025 — OpenNMS/opennms: Delivered stability, modernization, and upgrade-readiness enhancements that reduce startup risk, improve observability, and simplify future upgrades. Implemented SNMP4J upgrade to 2.8.15 with SLF4J logging and central Slf4jLogFactory, resolved a startup deadlock in the SNMP Poller by refactoring asynchronous handling, and hardened the UsageStatisticsReporter against broader exceptions. Modernized Spring context for compatibility with newer Spring versions, improved opennms.properties guidance to avoid direct edits and reduce upgrade conflicts, and updated release notes and horizon documentation to reflect new features.
August 2025
July 2025
4 Commits • 3 Features
Jul 1, 2025Concise monthly summary for 2025-07 focusing on key features delivered, major fixes, impact, and technical accomplishments. Highlights include new API capabilities and telemetry enhancements, with a cleanup of obsolete components to reduce maintenance burden.
July 2025
4 Commits • 3 Features
Jul 1, 2025Concise monthly summary for 2025-07 focusing on key features delivered, major fixes, impact, and technical accomplishments. Highlights include new API capabilities and telemetry enhancements, with a cleanup of obsolete components to reduce maintenance burden.
June 2025
5 Commits • 2 Features
Jun 1, 2025June 2025 OpenNMS/opennms monthly summary: Delivered major resilience and configurability enhancements with a focus on reliable Elasticsearch interactions and flexible deployment configuration. Replaced JestClient with ElasticRestClient across Flow modules to improve reliability and throughput when interacting with Elasticsearch, introducing bulk and search request models, retry for bulk operations, async support, and health checks with circuit-breaker patterns to reduce outages and improve time-to-recovery. Enhanced SCV keystore configurability by enabling keystore type specification via system properties, adding loading logic to ScvUtils, and correcting property-loading order to prioritize system properties, thereby improving configurability, test stability, and deployment consistency. These changes collectively reduce operational risk, improve CI reliability, and demonstrate strong software craftsmanship across backend integrations, configuration management, and resilience engineering.
5 Commits • 2 Features
Jun 1, 2025June 2025 OpenNMS/opennms monthly summary: Delivered major resilience and configurability enhancements with a focus on reliable Elasticsearch interactions and flexible deployment configuration. Replaced JestClient with ElasticRestClient across Flow modules to improve reliability and throughput when interacting with Elasticsearch, introducing bulk and search request models, retry for bulk operations, async support, and health checks with circuit-breaker patterns to reduce outages and improve time-to-recovery. Enhanced SCV keystore configurability by enabling keystore type specification via system properties, adding loading logic to ScvUtils, and correcting property-loading order to prioritize system properties, thereby improving configurability, test stability, and deployment consistency. These changes collectively reduce operational risk, improve CI reliability, and demonstrate strong software craftsmanship across backend integrations, configuration management, and resilience engineering.
June 2025
May 2025
2 Commits • 1 Features
May 1, 2025Month: 2025-05 — Delivered a feature-rich extension to OpenNMS/OpenNMS focusing on Elasticsearch template management and NetFlow integration. Key capability is ElasticRestClient-based management of Elasticsearch templates (ILM policies, component templates, and composable index templates) with directory-driven application, and capabilities to list, show, and apply individual templates for dynamic Elasticsearch configuration. Also added NetFlow Composable Templates support, with a refactor removing explicit connection logic and introducing ComposableTemplateInitializer to drive template application from a directory. Updated documentation and integration tests to verify new functionality across scenarios. No explicit major defects recorded in this period; improvements emphasize reliability, automation, and consistency of deployments across environments.
May 2025
2 Commits • 1 Features
May 1, 2025Month: 2025-05 — Delivered a feature-rich extension to OpenNMS/OpenNMS focusing on Elasticsearch template management and NetFlow integration. Key capability is ElasticRestClient-based management of Elasticsearch templates (ILM policies, component templates, and composable index templates) with directory-driven application, and capabilities to list, show, and apply individual templates for dynamic Elasticsearch configuration. Also added NetFlow Composable Templates support, with a refactor removing explicit connection logic and introducing ComposableTemplateInitializer to drive template application from a directory. Updated documentation and integration tests to verify new functionality across scenarios. No explicit major defects recorded in this period; improvements emphasize reliability, automation, and consistency of deployments across environments.
April 2025
6 Commits • 1 Features
Apr 1, 2025April 2025 OpenNMS/opennms monthly delivery focused on stability, interoperability, and observability improvements. Delivered concrete fixes to service loading, inventory accuracy, and gRPC communications, restored compatibility after library downgrades, and enhanced tracing configuration documentation to reduce deployment misconfigurations. The work reduces fault domains, accelerates time-to-value for deployments, and strengthens the foundation for future feature work across core platform and devices.
6 Commits • 1 Features
Apr 1, 2025April 2025 OpenNMS/opennms monthly delivery focused on stability, interoperability, and observability improvements. Delivered concrete fixes to service loading, inventory accuracy, and gRPC communications, restored compatibility after library downgrades, and enhanced tracing configuration documentation to reduce deployment misconfigurations. The work reduces fault domains, accelerates time-to-value for deployments, and strengthens the foundation for future feature work across core platform and devices.
April 2025
March 2025
4 Commits • 3 Features
Mar 1, 2025March 2025 performance summary: Delivered key observability and architecture enhancements in OpenNMS/opennms, focusing on proactive health signaling and maintainable client tooling. Implemented heartbeat: BSM client and SPOG integration with new gRPC service definitions, client updates, and accompanying documentation; refactored the gRPC exporter client to consolidate BSM and NMS inventory for simpler configuration and scalable maintenance. No major bugs reported this month; stability improvements and reduced maintenance overhead through consolidation.
March 2025
4 Commits • 3 Features
Mar 1, 2025March 2025 performance summary: Delivered key observability and architecture enhancements in OpenNMS/opennms, focusing on proactive health signaling and maintainable client tooling. Implemented heartbeat: BSM client and SPOG integration with new gRPC service definitions, client updates, and accompanying documentation; refactored the gRPC exporter client to consolidate BSM and NMS inventory for simpler configuration and scalable maintenance. No major bugs reported this month; stability improvements and reduced maintenance overhead through consolidation.
February 2025
1 Commits
Feb 1, 2025February 2025: Resolved a critical Graph REST API loading issue by adding the missing Guava dependency to the Jung shaded artifact in OpenNMS/opennms. The fix ensures the Graph REST API loads reliably across environments, reducing downtime and support costs. The change is tracked under NMS-17073 with commit be1a66ae936383255993e9184691c7287292e1f5.
1 Commits
Feb 1, 2025February 2025: Resolved a critical Graph REST API loading issue by adding the missing Guava dependency to the Jung shaded artifact in OpenNMS/opennms. The fix ensures the Graph REST API loads reliably across environments, reducing downtime and support costs. The change is tracked under NMS-17073 with commit be1a66ae936383255993e9184691c7287292e1f5.
February 2025
January 2025
5 Commits • 3 Features
Jan 1, 2025January 2025 monthly summary for OpenNMS/opennms focused on delivering high-value features, stabilizing core workflows, and modularizing components to improve maintainability and scalability. Key outcomes include exposing enterprise-grade telemetry via a multi-tenant gRPC exporter, stabilizing credential handling with a keystore auto-reload, and refactoring foundational libraries to enhance reuse and testability, along with targeted stability improvements for system reports. All work aligns with business goals of reliable external integrations, robust security posture, and faster delivery cycles.
January 2025
5 Commits • 3 Features
Jan 1, 2025January 2025 monthly summary for OpenNMS/opennms focused on delivering high-value features, stabilizing core workflows, and modularizing components to improve maintainability and scalability. Key outcomes include exposing enterprise-grade telemetry via a multi-tenant gRPC exporter, stabilizing credential handling with a keystore auto-reload, and refactoring foundational libraries to enhance reuse and testability, along with targeted stability improvements for system reports. All work aligns with business goals of reliable external integrations, robust security posture, and faster delivery cycles.
December 2024
5 Commits • 3 Features
Dec 1, 2024December 2024 – OpenNMS/opennms: - Delivered three new features that enhance telemetry accuracy, service visibility, and data richness, plus a critical bug fix in trap address handling. The work strengthens operational reliability, improves data-driven monitoring, and keeps telemetry schemas current. - Business value: improved service-state accuracy (reduces false positives/negatives in status), richer latency telemetry for performance insights, and robust trap processing to ensure alerts are correctly addressed. - Technologies and patterns demonstrated: API layering and testing, time-series data tagging, protocol buffer/schema updates with generated classes, configuration options, and comprehensive test coverage and documentation updates. Overall impact: - More accurate service status mapping and latency insights enable faster triage and better user experience. - Protocol buffer updates ensure compatibility with evolving telemetry formats. - The SNMP trap bug fix reduces misrouting of alerts and increases reliability of monitoring pipelines.
5 Commits • 3 Features
Dec 1, 2024December 2024 – OpenNMS/opennms: - Delivered three new features that enhance telemetry accuracy, service visibility, and data richness, plus a critical bug fix in trap address handling. The work strengthens operational reliability, improves data-driven monitoring, and keeps telemetry schemas current. - Business value: improved service-state accuracy (reduces false positives/negatives in status), richer latency telemetry for performance insights, and robust trap processing to ensure alerts are correctly addressed. - Technologies and patterns demonstrated: API layering and testing, time-series data tagging, protocol buffer/schema updates with generated classes, configuration options, and comprehensive test coverage and documentation updates. Overall impact: - More accurate service status mapping and latency insights enable faster triage and better user experience. - Protocol buffer updates ensure compatibility with evolving telemetry formats. - The SNMP trap bug fix reduces misrouting of alerts and increases reliability of monitoring pipelines.
December 2024
Activity
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Quality Metrics
Correctness90.6%
Maintainability87.4%
Architecture85.6%
Performance81.6%
AI Usage21.6%
Skills & Technologies
Programming Languages
AsciiDocGroovyJSONJavaProtoXMLYAMLadocasciidocproperties
Technical Skills
API DevelopmentApache KafkaAsynchronous ProgrammingBackend DevelopmentBuild AutomationBuild System ConfigurationBuild ToolsCI/CDCircleCIClient-Server CommunicationCode RefactoringCommand Line InterfaceConfiguration ManagementContinuous IntegrationData Parsing
Repositories Contributed To
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