JeffersonLab/halld_recon
Apr 2024 – Dec 2025
20 Months active
Languages Used
C++XMLPython
Technical Skills
C++C++ developmentC++ programmingConcurrencyData AnalysisData Calibration
raiqarasool
PROFILE
Raiqarasool
Rasool Raiqa engineered core data processing and analysis infrastructure for the JeffersonLab/halld_recon repository, focusing on stability, maintainability, and framework modernization. Over 20 months, he migrated major components to the JANA2 framework, refactored plugin architectures, and enhanced event handling and calibration data workflows. Using C++ and Python, Rasool addressed concurrency, memory management, and build system hygiene, delivering robust solutions for multi-threaded data pipelines and ROOT-based analysis. His work included targeted bug fixes, improved error handling, and streamlined configuration management, resulting in a more reliable, scalable codebase that supports efficient onboarding, automated workflows, and consistent downstream analysis quality.
Overall Statistics
Feature vs Bugs
46%Features
Repository Contributions
90Total
Bugs
30
Commits
90
Features
26
Lines of code
5,072
Activity Months20
Your Network
33 people
Work History
December 2025
1 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for JeffersonLab/halld_recon: Delivered enhancements to reaction object tagging in DReaction_factory, including automatic tag assignment for cpp_hists and npp_hists, improving object identification and management within the analysis framework. Ported DReaction_factory tag handling from JANA1 to JANA2, enabling smoother framework migration and alignment with the updated runtime. These changes enhance data provenance, reduce manual tagging effort, and boost downstream analysis reliability. Commit reference involved: f0ef1304af2117422c3455d03cda479692b9277c (Port DReaction_factory tag setting from JANA1 to JANA2).
1 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for JeffersonLab/halld_recon: Delivered enhancements to reaction object tagging in DReaction_factory, including automatic tag assignment for cpp_hists and npp_hists, improving object identification and management within the analysis framework. Ported DReaction_factory tag handling from JANA1 to JANA2, enabling smoother framework migration and alignment with the updated runtime. These changes enhance data provenance, reduce manual tagging effort, and boost downstream analysis reliability. Commit reference involved: f0ef1304af2117422c3455d03cda479692b9277c (Port DReaction_factory tag setting from JANA1 to JANA2).
December 2025
October 2025
1 Commits
Oct 1, 2025October 2025: Delivered a critical compatibility fix for halld_recon to maintain histogram visibility after upgrading ROOT from 6.24 to 6.32. The fix adjusts the global directory context in BeginRun to point to the correct ROOT file, ensuring plugins have valid file system context and histograms remain visible across runs. The change was implemented under Fix #1054 and committed as a615fa06ef0d90d1470ea9d702f364b9e572ebc0, preventing missing histograms and reducing downstream data-quality issues. Overall, this patch improves runtime stability, reduces debugging time, and preserves analysis continuity across library upgrades.
October 2025
1 Commits
Oct 1, 2025October 2025: Delivered a critical compatibility fix for halld_recon to maintain histogram visibility after upgrading ROOT from 6.24 to 6.32. The fix adjusts the global directory context in BeginRun to point to the correct ROOT file, ensuring plugins have valid file system context and histograms remain visible across runs. The change was implemented under Fix #1054 and committed as a615fa06ef0d90d1470ea9d702f364b9e572ebc0, preventing missing histograms and reducing downstream data-quality issues. Overall, this patch improves runtime stability, reduces debugging time, and preserves analysis continuity across library upgrades.
September 2025
1 Commits • 1 Features
Sep 1, 2025Monthly summary for 2025-09 focused on JeffersonLab/halld_recon development. Delivered a flexible plugin control mechanism via PLUGIN_CHECK, enabling conditional validation of the PLUGINS set and safer plugin handling. Updated error messaging for no-plugins to be more direct, improving debugging speed. The change enhances configurability, reliability, and maintainability of the plugin loading pathway without disrupting existing flows unless explicitly disabled.
1 Commits • 1 Features
Sep 1, 2025Monthly summary for 2025-09 focused on JeffersonLab/halld_recon development. Delivered a flexible plugin control mechanism via PLUGIN_CHECK, enabling conditional validation of the PLUGINS set and safer plugin handling. Updated error messaging for no-plugins to be more direct, improving debugging speed. The change enhances configurability, reliability, and maintainability of the plugin loading pathway without disrupting existing flows unless explicitly disabled.
September 2025
August 2025
1 Commits • 1 Features
Aug 1, 2025Concise monthly summary for 2025-08 focusing on business value and technical achievements for JeffersonLab/halld_recon.
August 2025
1 Commits • 1 Features
Aug 1, 2025Concise monthly summary for 2025-08 focusing on business value and technical achievements for JeffersonLab/halld_recon.
July 2025
2 Commits
Jul 1, 2025July 2025 monthly summary for JeffersonLab/halld_recon focusing on stability and reliability improvements. Delivered two critical bug fixes and aligned termination with the JANA2 framework, resulting in fewer crashes and more predictable shutdowns during data processing. Key technical work included regenerating DBCALGeometry to fix a mcsmear crash with jana2.4.2 and implementing a JANA2-compliant quitting protocol in DEVIOWorkerThread::Run.
2 Commits
Jul 1, 2025July 2025 monthly summary for JeffersonLab/halld_recon focusing on stability and reliability improvements. Delivered two critical bug fixes and aligned termination with the JANA2 framework, resulting in fewer crashes and more predictable shutdowns during data processing. Key technical work included regenerating DBCALGeometry to fix a mcsmear crash with jana2.4.2 and implementing a JANA2-compliant quitting protocol in DEVIOWorkerThread::Run.
July 2025
June 2025
1 Commits
Jun 1, 2025June 2025 (2025-06) summary for JeffersonLab/halld_recon: Focused on stabilizing MilleFieldOn/MilleFieldOff plugin integration by performing signature cleanup and aligning with base class contracts. Removed runnumber and eventnumber parameters to ensure proper porting and seamless integration of MilleFieldOn and MilleFieldOff plugins across the plugin suite. This change reduces potential runtime errors, simplifies future maintenance, and improves build stability across environments.
June 2025
1 Commits
Jun 1, 2025June 2025 (2025-06) summary for JeffersonLab/halld_recon: Focused on stabilizing MilleFieldOn/MilleFieldOff plugin integration by performing signature cleanup and aligning with base class contracts. Removed runnumber and eventnumber parameters to ensure proper porting and seamless integration of MilleFieldOn and MilleFieldOff plugins across the plugin suite. This change reduces potential runtime errors, simplifies future maintenance, and improves build stability across environments.
May 2025
1 Commits
May 1, 2025In May 2025, the focus was on stabilizing the JEventProcessor lifecycle within JeffersonLab/halld_recon to improve correctness and reliability of the JANA-based event processing pipeline. A targeted bug fix ensured type registration occurs reliably at object creation, not destruction, which eliminates misidentification of processor classes during runtime and simplifies plugin integration.
1 Commits
May 1, 2025In May 2025, the focus was on stabilizing the JEventProcessor lifecycle within JeffersonLab/halld_recon to improve correctness and reliability of the JANA-based event processing pipeline. A targeted bug fix ensured type registration occurs reliably at object creation, not destruction, which eliminates misidentification of processor classes during runtime and simplifies plugin integration.
May 2025
April 2025
1 Commits
Apr 1, 2025April 2025 monthly summary for JeffersonLab/halld_recon focusing on stability and reliability improvements in the CCDB/calibration path. Delivered a targeted bug fix for a crash in DEventSourceREST by ensuring JApplication is set on a manually created CCDB generator, preventing runtime failures during initialization. The fix is captured in commit f550cc9978ff0b39a45433b9278e47000263bddb. No new features were released this month; instead, the emphasis was on hardening core data access and calibration workflows to reduce production incidents and improve system reliability.
April 2025
1 Commits
Apr 1, 2025April 2025 monthly summary for JeffersonLab/halld_recon focusing on stability and reliability improvements in the CCDB/calibration path. Delivered a targeted bug fix for a crash in DEventSourceREST by ensuring JApplication is set on a manually created CCDB generator, preventing runtime failures during initialization. The fix is captured in commit f550cc9978ff0b39a45433b9278e47000263bddb. No new features were released this month; instead, the emphasis was on hardening core data access and calibration workflows to reduce production incidents and improve system reliability.
March 2025
7 Commits • 2 Features
Mar 1, 2025March 2025: Delivered stability and interoperability improvements for halld_recon, focused on memory management, input robustness, and JANA2 compatibility. Key features include enhanced HD Dump tooling with tag-aware factory reporting and clean shutdown, and HDView porting to JANA2 with build-system updates. Major bug fixes address memory leaks in DBeamPhoton_factory, EVIO input handling for non-compiled scenarios and multi-file use, and a run-number initialization issue in HELI_online. These changes reduce runtime crashes, improve resource management, and enable smoother data processing workflows across multi-file EVIO inputs and modern JANA2-based pipelines. Technologies demonstrated include C++ memory management, lifecycle ownership, build-system refactoring, and plugin/processor initialization robustness.
7 Commits • 2 Features
Mar 1, 2025March 2025: Delivered stability and interoperability improvements for halld_recon, focused on memory management, input robustness, and JANA2 compatibility. Key features include enhanced HD Dump tooling with tag-aware factory reporting and clean shutdown, and HDView porting to JANA2 with build-system updates. Major bug fixes address memory leaks in DBeamPhoton_factory, EVIO input handling for non-compiled scenarios and multi-file use, and a run-number initialization issue in HELI_online. These changes reduce runtime crashes, improve resource management, and enable smoother data processing workflows across multi-file EVIO inputs and modern JANA2-based pipelines. Technologies demonstrated include C++ memory management, lifecycle ownership, build-system refactoring, and plugin/processor initialization robustness.
March 2025
February 2025
2 Commits • 1 Features
Feb 1, 2025February 2025 (2025-02) — JeffersonLab/halld_recon: Reliability and readability improvements focused on histogram handling and code clarity. Key deliverables: 1) Histogram placement fix: ensured histogram operations execute in the base/root directory to prevent histogram misplacement; changes in DSourceComboer.cc and DCustomAction_CutNoDetectorHit.cc; commit 9073971774075516dc60d1ee01705c0b1808d771. 2) Code clarity improvement: rename Particle_t enum value 'Unknown' to 'UnknownParticle' across the codebase, in line with issue #854; commit b69e6c174a20a437d788c93c6a813768d1906c65. Impact: reduces histogram misplacement risk, shortens debugging cycles, and improves maintainability and consistency for future feature work. Technologies/skills: C++, ROOT-based histogram operations, code refactoring, and disciplined version control.
February 2025
2 Commits • 1 Features
Feb 1, 2025February 2025 (2025-02) — JeffersonLab/halld_recon: Reliability and readability improvements focused on histogram handling and code clarity. Key deliverables: 1) Histogram placement fix: ensured histogram operations execute in the base/root directory to prevent histogram misplacement; changes in DSourceComboer.cc and DCustomAction_CutNoDetectorHit.cc; commit 9073971774075516dc60d1ee01705c0b1808d771. 2) Code clarity improvement: rename Particle_t enum value 'Unknown' to 'UnknownParticle' across the codebase, in line with issue #854; commit b69e6c174a20a437d788c93c6a813768d1906c65. Impact: reduces histogram misplacement risk, shortens debugging cycles, and improves maintainability and consistency for future feature work. Technologies/skills: C++, ROOT-based histogram operations, code refactoring, and disciplined version control.
January 2025
3 Commits
Jan 1, 2025January 2025 performance summary for JeffersonLab/halld_recon. Focused on delivering stability, data integrity, and accurate analytics in the reconstruction pipeline. Implemented targeted fixes to ROOT I/O, REST event handling, and histogram population, improving data quality, reproducibility, and downstream analysis throughput.
3 Commits
Jan 1, 2025January 2025 performance summary for JeffersonLab/halld_recon. Focused on delivering stability, data integrity, and accurate analytics in the reconstruction pipeline. Implemented targeted fixes to ROOT I/O, REST event handling, and histogram population, improving data quality, reproducibility, and downstream analysis throughput.
January 2025
December 2024
9 Commits • 1 Features
Dec 1, 2024December 2024 monthly recap for Jefferson Lab halld_recon. Focused on stabilizing runtime memory hygiene, thread-safety, and JANA2 migration readiness. Key features delivered include Init-based initialization refactors for BCAL_TDC_Timing and ReactionFilter, and porting DEventWriterREST and related components to Init-based initialization during the JANA2 migration. Implemented broad bug fixes that address memory leaks, crashes, and deadlocks across plugins and REST writer, strengthening reliability of data processing pipelines. These efforts reduce memory growth, prevent race conditions, and improve overall system stability and maintainability.
December 2024
9 Commits • 1 Features
Dec 1, 2024December 2024 monthly recap for Jefferson Lab halld_recon. Focused on stabilizing runtime memory hygiene, thread-safety, and JANA2 migration readiness. Key features delivered include Init-based initialization refactors for BCAL_TDC_Timing and ReactionFilter, and porting DEventWriterREST and related components to Init-based initialization during the JANA2 migration. Implemented broad bug fixes that address memory leaks, crashes, and deadlocks across plugins and REST writer, strengthening reliability of data processing pipelines. These efforts reduce memory growth, prevent race conditions, and improve overall system stability and maintainability.
November 2024
9 Commits • 1 Features
Nov 1, 2024November 2024 (JeffersonLab/halld_recon) delivered a set of stability fixes, persistence improvements, and cross-compatibility updates that strengthen reliability of data processing and enable smoother JANA2 migration. The work focused on plugin robustness, durable data writing, and correct object lifecycle handling, with an emphasis on business value through reduced downtime and more dependable workflow execution.
9 Commits • 1 Features
Nov 1, 2024November 2024 (JeffersonLab/halld_recon) delivered a set of stability fixes, persistence improvements, and cross-compatibility updates that strengthen reliability of data processing and enable smoother JANA2 migration. The work focused on plugin robustness, durable data writing, and correct object lifecycle handling, with an emphasis on business value through reduced downtime and more dependable workflow execution.
November 2024
October 2024
4 Commits • 1 Features
Oct 1, 2024In Oct 2024, delivered critical reliability and modernization improvements in JeffersonLab/halld_recon. Key features included migrating to the JANA2 framework for improved event processing and histogram handling, along with targeted bug fixes that reduce crashes and race conditions. These efforts improve runtime stability, thread safety, and data handling, enabling faster, more reliable analysis pipelines and easier plugin development.
October 2024
4 Commits • 1 Features
Oct 1, 2024In Oct 2024, delivered critical reliability and modernization improvements in JeffersonLab/halld_recon. Key features included migrating to the JANA2 framework for improved event processing and histogram handling, along with targeted bug fixes that reduce crashes and race conditions. These efforts improve runtime stability, thread safety, and data handling, enabling faster, more reliable analysis pipelines and easier plugin development.
September 2024
2 Commits • 1 Features
Sep 1, 2024September 2024: Completed Platform Migration to JANA2 for JeffersonLab/halld_recon, migrating event processing and parameter management from gPARMS to a JANA2-based app, and updating the event loop to use shared_ptr. The work improves compatibility, maintainability, and data/event processing capabilities, and lays the groundwork for future JANA2 features and easier onboarding for new engineers. No major bugs were reported this month; migration included two core commits as milestones. Business impact includes a more robust, scalable data processing pipeline and reduced technical debt.
2 Commits • 1 Features
Sep 1, 2024September 2024: Completed Platform Migration to JANA2 for JeffersonLab/halld_recon, migrating event processing and parameter management from gPARMS to a JANA2-based app, and updating the event loop to use shared_ptr. The work improves compatibility, maintainability, and data/event processing capabilities, and lays the groundwork for future JANA2 features and easier onboarding for new engineers. No major bugs were reported this month; migration included two core commits as milestones. Business impact includes a more robust, scalable data processing pipeline and reduced technical debt.
September 2024
August 2024
1 Commits • 1 Features
Aug 1, 2024Monthly summary for 2024-08 focusing on business value and technical achievements for JeffersonLab/halld_recon. Key feature delivered: dependency versioning and build cleanup. This work reduces manual dependency management, streamlines the repository, and sets the stage for automated CI/CD workflows, resulting in more reliable builds and easier deployment. No major bugs fixed this month. Overall impact: improved maintainability, reduced toil, and readiness for automation. Technologies/skills demonstrated include versioning strategy, build-system hygiene, and repository cleanup that align with long-term CI/CD goals.
August 2024
1 Commits • 1 Features
Aug 1, 2024Monthly summary for 2024-08 focusing on business value and technical achievements for JeffersonLab/halld_recon. Key feature delivered: dependency versioning and build cleanup. This work reduces manual dependency management, streamlines the repository, and sets the stage for automated CI/CD workflows, resulting in more reliable builds and easier deployment. No major bugs fixed this month. Overall impact: improved maintainability, reduced toil, and readiness for automation. Technologies/skills demonstrated include versioning strategy, build-system hygiene, and repository cleanup that align with long-term CI/CD goals.
July 2024
1 Commits • 1 Features
Jul 1, 2024July 2024 (JeffersonLab/halld_recon): Delivered JANA2-aligned enhancements to Event Writing with improved thread safety and performance. Completed refactor and rebase to support JANA2 architecture, enabling more stable and scalable multi-threaded data processing. Notable commit: d6db8dd2fa384c076b0ba19b07083a2b20acf0fd (Porting to JANA2 after July17,2024 rebase).
1 Commits • 1 Features
Jul 1, 2024July 2024 (JeffersonLab/halld_recon): Delivered JANA2-aligned enhancements to Event Writing with improved thread safety and performance. Completed refactor and rebase to support JANA2 architecture, enabling more stable and scalable multi-threaded data processing. Notable commit: d6db8dd2fa384c076b0ba19b07083a2b20acf0fd (Porting to JANA2 after July17,2024 rebase).
July 2024
June 2024
2 Commits • 1 Features
Jun 1, 2024June 2024 monthly summary for JeffersonLab/halld_recon focused on migrational stability with JANA2 and enabling use of the latest framework features. Delivered targeted fixes to data handling after the JANA2 migration and implemented compatibility enhancements to DReaction to align with the rasool_jana2 tag, reducing regressions and unlocking new capabilities for downstream analyses.
June 2024
2 Commits • 1 Features
Jun 1, 2024June 2024 monthly summary for JeffersonLab/halld_recon focused on migrational stability with JANA2 and enabling use of the latest framework features. Delivered targeted fixes to data handling after the JANA2 migration and implemented compatibility enhancements to DReaction to align with the rasool_jana2 tag, reducing regressions and unlocking new capabilities for downstream analyses.
May 2024
3 Commits • 1 Features
May 1, 2024May 2024 monthly summary for JeffersonLab/halld_recon: Targeted stability and maintainability improvements focused on ECAL/BCAL data paths and the DECALHit_factory lifecycle. The changes deliver a cleaner initialization flow, corrected calibration data handling, and a more reliable build process, contributing to more robust data processing and easier future work.
3 Commits • 1 Features
May 1, 2024May 2024 monthly summary for JeffersonLab/halld_recon: Targeted stability and maintainability improvements focused on ECAL/BCAL data paths and the DECALHit_factory lifecycle. The changes deliver a cleaner initialization flow, corrected calibration data handling, and a more reliable build process, contributing to more robust data processing and easier future work.
May 2024
April 2024
38 Commits • 12 Features
Apr 1, 2024April 2024 performance summary for JeffersonLab/halld_recon: focused on migrating the codebase to JANA2, stabilizing core data processing pipelines, and improving build reliability. Delivered broad JANA2 port coverage across monitoring, analysis, calibration, and utilities, with additional ports for ECAL/HDDM and related libraries after master sync. Implemented a prerequisites XML to streamline builds. Addressed critical stability and correctness issues in HDDump and HDGEOMETRY, and resolved upstream merge conflicts. Overall impact includes faster feature delivery, more reliable data processing, and reduced maintenance burden.
April 2024
38 Commits • 12 Features
Apr 1, 2024April 2024 performance summary for JeffersonLab/halld_recon: focused on migrating the codebase to JANA2, stabilizing core data processing pipelines, and improving build reliability. Delivered broad JANA2 port coverage across monitoring, analysis, calibration, and utilities, with additional ports for ECAL/HDDM and related libraries after master sync. Implemented a prerequisites XML to streamline builds. Addressed critical stability and correctness issues in HDDump and HDGEOMETRY, and resolved upstream merge conflicts. Overall impact includes faster feature delivery, more reliable data processing, and reduced maintenance burden.
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Quality Metrics
Correctness89.8%
Maintainability86.8%
Architecture85.6%
Performance81.8%
AI Usage21.0%
Skills & Technologies
Programming Languages
C++PythonXML
Technical Skills
Bug FixBug FixingBuild SystemsC++C++ DevelopmentC++ developmentC++ programmingCalibration Data HandlingCode MaintenanceCode RefactoringCommand Line InterfaceConcurrencyConfiguration ManagementData AcquisitionData Analysis
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