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Marc Handalian

PROFILE

Marc Handalian

Over ten months, contributed to backend and analytics features across wazuh/wazuh-indexer and opensearch-project/OpenSearch, focusing on distributed systems, plugin extensibility, and analytics engine development. Delivered enhancements such as optimized replica recovery, Gradle-based plugin resolution, and robust CI/CD workflows using Java, Gradle, and Rust. Implemented an extensible analytics engine with asynchronous execution and streaming support, expanded PPL operator coverage, and stabilized replication lag metrics. Addressed reliability through targeted bug fixes, improved test determinism, and refined resource management. The work emphasized modular architecture, efficient data processing, and maintainable build automation, supporting scalable analytics and resilient backend infrastructure in both repositories.

Overall Statistics

Feature vs Bugs

56%Features

Repository Contributions

44Total
Bugs
16
Commits
44
Features
20
Lines of code
58,405
Activity Months10

Work History

May 2026

27 Commits • 11 Features

May 1, 2026

May 2026 OpenSearch analytics and backend work focused on delivering end-to-end analytics capabilities, expanding the PPL data path, stabilizing the analytics-engine, and improving reliability and resource management. Key features shipped, major bugs fixed, and business value realized through stronger query support, better performance, and increased resilience across the data and compute stack.

April 2026

5 Commits • 2 Features

Apr 1, 2026

April 2026 monthly delivery for opensearch-project/OpenSearch focused on stabilizing CI, correctness fixes, and advancing analytics and streaming capabilities to improve throughput and user-perceived latency.

March 2026

2 Commits • 2 Features

Mar 1, 2026

March 2026: Delivered foundational analytics capabilities and improved plugin extensibility for OpenSearch. Key initiatives included: 1) Extensible Analytics Engine Plugin — initial commit with a query engine, plugin SPI refactorings, and front-end wiring to UnifiedQueryAPI. 2) Plugin Discovery Enhancement — sandbox plugin recognition from run.gradle, expanding discovery to sandbox plugins for greater flexibility. 3) Stabilization and hygiene — fixed analyzer issues, resolved dependency alignment (Calcite/Guava), Gradle build cleanups, and licensing/javadoc fixes to improve maintainability and compliance. Result: a modular analytics layer ready for broader data insights, with flexible plugin management and improved build reliability.

October 2025

2 Commits • 2 Features

Oct 1, 2025

Month: 2025-10. Focused on governance, CI/CD reliability, and build reproducibility for wazuh-indexer. Delivered two features with clear business value: updated maintainer roster to ensure accurate contributor records and parameterized Lucene snapshot workflow Java version for reliable publishing. No explicit bug fixes recorded this month. This work improves contributor governance, reduces build/configuration errors, and enhances repeatability of releases.

September 2025

1 Commits • 1 Features

Sep 1, 2025

September 2025 – wazuh/wazuh-indexer: Delivered Gradle Run enhancements to resolve and run external plugins from Maven repositories, plus targeted documentation updates. This enables flexible development/testing with third-party plugins and prepares the project for extended plugin ecosystems.

August 2025

1 Commits

Aug 1, 2025

2025-08 monthly summary for opensearch-project/OpenSearch: Delivered a deterministic YML test for the combined_fields feature by fixing the test environment and setting shards to 1, eliminating flaky results and improving CI reliability. The change directly strengthens release readiness by ensuring consistent test outcomes for a critical combined_fields test and reduces CI noise for faster feedback loops.

July 2025

1 Commits

Jul 1, 2025

2025-07: Stabilized replication lag calculation and checkpoint synchronization for wazuh-indexer, delivering accuracy improvements and increased reliability across nodes. Key changes include correcting epoch-based lag computation with Instant.now() and DateUtils, refining pruning to track the latest synced checkpoint, and addressing a flaky test related to checkpoint arrival time. These changes reduce false lag reports, improve monitoring, and support safer rollouts of replicated data.

May 2025

2 Commits • 1 Features

May 1, 2025

Concise monthly summary for May 2025 focusing on wazuh/wazuh-indexer contributions. Highlights include governance improvement via maintainer addition and a stability fix in ShardRouting, with clear business value and technical outcomes.

April 2025

2 Commits

Apr 1, 2025

April 2025 - wazuh/wazuh-indexer: Focused on reliability, stability, and maintainability through targeted bug fixes and code standardization. Key activities include stabilizing Star Tree index tests by proper feature flag isolation and renaming search_only_replica to search_replica across the codebase, with corresponding test updates. These changes reduce CI flakiness, improve production confidence, and simplify future feature work.

January 2025

1 Commits • 1 Features

Jan 1, 2025

January 2025 focused on delivering stability and performance improvements in wazuh-indexer, emphasizing search-only replica recovery optimization, refined allocation safeguards, and conditional reader-writer separation gating for remote-store-enabled clusters. Demonstrated skills in remote store integration, cluster recovery workflows, allocation policy design, and targeted performance tuning, backed by a concrete commit in wazuh-indexer.

Activity

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Quality Metrics

Correctness89.4%
Maintainability83.6%
Architecture87.2%
Performance82.2%
AI Usage27.8%

Skills & Technologies

Programming Languages

GradleGroovyJavaMarkdownRustShellYAML

Technical Skills

API integrationBackend DevelopmentBuild AutomationCI/CDCluster ManagementConfiguration ManagementData RecoveryDistributed SystemsDocumentation ManagementGitHub ActionsGradleGradle ScriptingJavaJava concurrencyJava development

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

opensearch-project/OpenSearch

Aug 2025 May 2026
4 Months active

Languages Used

YAMLGroovyJavaRust

Technical Skills

CI/CDTestingAPI integrationGradleJava developmentplugin development

wazuh/wazuh-indexer

Jan 2025 Oct 2025
6 Months active

Languages Used

GroovyJavaMarkdownGradleShellYAML

Technical Skills

Cluster ManagementData RecoveryDistributed SystemsRemote StoreReplicationSearch